If it is damaged replace the board. If this doesn’t do the trick, check the temperature pressure valve – if it is faulty, the heater won’t shut off when it reaches the correct temperature. Checkpower supply (Plug another appliance (ie hairdryer) into power point and test. If you have a gas version, it could be related to the burner – see #12 below for further information. If the leak comes from the tank, this is more serious since it may be corroded. Reasons Why a Car Heater Stops Working . As long as everything is working properly (e.g. Now, your water heater is designed to handle a certain amount of pressure. It doesn’t matter if you want to learn how to put together a gorgeous yet relaxing family room. I turned it back on. They can also come from valves, and these can be replaced. Over-temperature sensor reacts if the unit is too hot, so it shuts the unit down. Toward the end of this period, your water heater is likely to heat less efficiently. Unplug the unit and then remove the cover. Your water heater should never be hot to the touch. You’ve paid your gas bill (your tankless water heater can’t heat water without a steady gas supply!) This post is about Rinnai tankless water heater troubleshooting because that’s the brand we install the most often, but we have deep experience with all brands of tankless (on demand) water heaters. Not bad article. Jonny L October 12, 2017 At 3:43 am. This post is about Rinnai tankless water heater troubleshooting because that’s the brand we install the most often, but we have deep experience with all brands of tankless (on demand) water heaters. If there is no flame, use some of these tips for troubleshooting: check the loose connections and the proper voltage on the power supply, PC board, and igniter. Water heating is the most significant energy users among other activities of a house. Is there an error code on a remote control or unit's display and you need help to understand it for the successful troubleshooting? Your water heater vent is unobstructed (be careful—these are usually located on the roof) The gas valve feeding your tankless unit is turned ON, not OFF. Unfortunately, having a gas water heater that doesn’t get hot enough isn’t the only common problem that homeowners find themselves confronted with. Often, the most important thing you can do is to identify the problem early and take steps to rectify it. Tankless water heaters are not immune to problems. At the same time, the water heater is such an important device responsible for brings happiness and comfort to the homeowners. Check heat exchanger and all piping for leaks. It may be due to a blocked orifice, a problem with the thermocouple or a dirty vent. If the water heater is new, or if you’ve just moved into a new home and aren’t familiar with the water heater’s capability, it’s likely that the unit is undersized. If it has, it’s an easy fix – simply turn it off and turn it back on again. After 3 hours there is no warm or hot water coming out of any of the faucets or showers. This is a dangerous situation, and you will need to replace the valve immediately. I just moved into a new home. Unfortunately the Infinity 24 is not listed as a compatible system for this controller and it's not working. This is how to fix a Rinnai Water Heater that is not working following a flush of the heat exchanger. Troubleshooting Rinnai water heaters are much easier if they come with the diagnostics system. We look forward to working with you! That’s why we offer fast, expert repair. Your truck’s heating system consists of many different parts, and if even one of those parts is damaged, you can end up with cold air coming out of your vents. Common Water Heater Problems. A water heater that produces no hot water may not be getting power, or it may have a tripped limit switch or one or more failed heating elements. Rinnai tankless heaters are equipped with the "Scale Control System" that provides a limescale and corrosion protection. Get more details on how to troubleshoot error code 12. Ensure that your water heater gets enough combustion air and that the vent system is not blocked. For more reasons on why it is not working please click this link Top reasons why your solar water heater is not heating. Many issues are not fatal for your heater, and the key to repairing them is correctly identifying what’s wrong. I have a tankless gas water tank. Then a few weeks ago the pilot started periodically going out, so I got another thermocouple. Problems with Tankless Water Heater Temperature. Beating the drum in favor of tankless water heater is not over amused. We look forward to working with you! Gas Water Heaters. Increase the temperature to approximately 125-130 F, or higher if needed. The most obvious reason an electric heater doesn’t work is that it’s not receiving any power. When a standard tank-style gas water heater stops producing hot water, it means that the gas burner is no longer producing the flame necessary to heat the water. First, check the water heater's circuit breaker in the service panel to make sure it hasn't tripped. Low water pressure is often caused by not having wide enough pipes. Test the igniter and see is it still working. This is almost certainly due to the thermostat being set too high, but it’s an easy problem to resolve. Test these and replace as necessary. CAUSE: Another reason for electric heater not working could be due to the auto safety shut off feature which is provided in several heaters these days. Services LLC Associates Program, an affiliate advertising program designed to Gas hot water heater troubleshooting always seems to start with the pilot light. If the problem occurs, you will notice the error codes LC0-LC9, which represents the scale build-up problem inside the heat exchanger. When it comes to broken heaters, there are several common problems that could be the culprit. A detailed guide on how to troubleshoot error code 10 is here. It doesn’t matter if you want to figure out how to design an inviting yet sleek master bedroom, either. I just moved into a new home. Make sure that the electrical grounding is done correctly and there are no shorts. Rinnai error codes easily allow you to know exactly where the fault lies that is causing you to experience no hot water, or for your hot water heater to not operate at all. Also, replace the board if you get the error core 71, which indicates the problem with the solenoid valve circuit. Keep in mind that the warranty does not cover the unit if the problems were related to freezing, water quality, flooding, fires, improper installation or handling. Beating the drum in favor of tankless water heater is not over amused. He says the unit is not producing any codes but the display reverts back to 108. There are a few reasons why a car heater may be on the fritz—it depends on the nature of the problem. Your tankless water heater will feel cold to the touch when the heater unit and pumps are in the rest state and not heating water. There are some more … After checking each of these, if you still can’t find the reason why you have no hot water, it might be time to call a professional. There’s nothing to worry about. Some of the error codes can be done only by the professional. Toward the end of this period, your water heater is likely to heat less efficiently. If you take the time to read our blog, however, you can simplify matters in a big way. If you have a gas version, it could be related to the burner – see #12 below for further information. Depending on the cause of the problem, the solution can be extremely simple, or complex and expensive. Some more good information on hotwatercylinders.nz. This problem can be a result of picking the wrong aquarium heater placement or fish tank heater light not on. In all cases, tankless water heaters must be property vented. Replace the element if it is needed. Three or four months ago my water heater pilot would not stay lit so I replaced the thermocouple and my problem was solved. We are authorised installers and repair technicians for all the solar hot water heater brands including Solahart, Rheem, Edwards, Apricus, Quantum and many more. So, by knowing this, Some homeowners find the heater not working when they need to heat their house. Endless Support. You’re using hot water faster than it can make it. If the water heater is new, or if you’ve just moved into a new home and aren’t familiar with the water heater’s capability, it’s likely that the unit is undersized. By increasing the flow rate, the problem can be solved. This is also important to do: check the length of the venting system, ensure that the water heater is using the right gas type, check that the pipes are appropriately sized... Bath Fill function is disturbed after the power outage. Depending on the cause of the problem, the solution can be extremely simple, or complex and expensive. There’s nothing to worry about. The new Control-R™ Wi-Fi Module attaches easily to the Rinnai Tankless Water Heater by a two-wire interface quickly connecting through your Wi-Fi network for monitoring. Open the panel and press the red “reset” button. You may need to consider upgrading to a more powerful unit. I have a Rinnai tankless RC80HPi water heater. Hi, I’m Emma, Editor of Sunrise Specialty. Check them and replace as necessary. Husky Will Get The Hot Water Flowing. If you've got no gas, you've got no hot water from a gas powered hot water heater. Use the same approach as with other sensors above. Older homes mostly have ½” pipes while modern homes usually use ¾” pipes. Another possibility is that you have a faulty heating element or elements. If this is the case, you need to think about buying a new water heater that can meet your needs. sites, A detailed guide on how to troubleshoot error code 10 is here. Check your water heater to make sure the pilot light is still on (check your owner’s manual if you need helping finding the pilot light, as it is well hidden). Then plug unit back in. Leaks from water heater tanks can be … Do you have a problem with a Rinnai tankless water heater? One of the most common issues many home-owners are dealing with, in on-demand water heating, is exposure to hard water. If you have a tankless heater, you may be trying to run too many fixtures for the unit’s power, so check how many fixtures your unit is rated for. If you feel warmth, your water heater is probably working. Getting regular maintenance will catch or prevent other tankless problems. You could also have air in the gas line, or the gas valve could be faulty. I have given the water heater 3 hours to heat water. This is the simplest and easiest hot water problem to fix. Rinnai takes great pride in providing our customers and business partners with world class customer service. But if the temperature of your water is too hot, pressure builds to dangerous levels inside the water heater, risking an explosion. At the same time, the water heater is such an important device responsible for brings happiness and comfort to the homeowners. My tankless water heater is not working. If you have a tankless heater, this is probably the root cause. This is harmless, but there’s not so much you can do about the noise. Insufficient or unstable power supply Despite being significantly more energy efficient than tank heaters, tankless water heaters use a large amount of electricity for a … There are some more … I am having trouble reconnecting my water heater … We know that a steady supply of hot water is vital to you. If you feel warmth, your water heater is probably working. When there is no gas ignition, the heater is OFF. This is the simplest and easiest hot water problem to fix. The Rinnai efficiency has an additional heat exchanger. If you have a corroded tank, it will need to be replaced entirely. There are two problems: one is that when teh water tap is open, the in "use" indicator was not … He doesn't get any hot or warm water. Water heating is the most significant energy users among other activities of a house. Heater Not Working. Many fish lovers, me as well, may know how useful this heater is, but sometimes, we might confuse if the aquarium heater is working or not. Our insight can guide the way for you. Give us a call at 704.846.5371 to service your tankless water heater. Once connected and the free Rinnai app is downloaded, the Rinnai Tankless Water Heater can be … Sometimes water heaters and pipes can make sounds through normal expansion and contraction due to heat. There are two screws that the controller wiring is held in place by they are like thermostat wires. Electric water heaters are high-voltage appliances, which means you should take full precautions when working with one. Check the internal elements and plumbing for leakage. Of course, the TP valve or pipe could still be warm if the water heater stopped working within the last 3 or 4 hours because the water inside would still be holding some heat. my water heater has hot water some days and warm water other days .what should i look for thanks. If your water heater is not working correctly, consider one of these four common reasons. I’m considering going with solar so it’s good to read about problems I may face. The problem could be that your heater is not powerful enough for your requirements. Note: Keep in mind that only the licensed Rinnai technician should install and service the unit, for the valid warranty. Water flow might be reduced when the water filter or fixture aerator are clogged. The most common is that a build-up of scale in the tank and on the heating elements is creating rumbling, popping and banging sounds as the water heats. The only solution for this is replacing the tank. If no leaks found, wipe out any water inside cabinet, dry off leak sensor, and restart unit. 3. Check your water heater to make sure the pilot light is still on (check your owner’s manual if you need helping finding the pilot light, as it is well hidden). If your tank is too small for the number of people showering, for example, you may use up all the hot water before everyone is finished. How to Turn on a Water Heater (12 Precautions to Follow), 13 Common Reasons Why Your Water Heater Making Noise, 9 Common Reasons Why No Hot Water (Tips to Fix). Tankless heaters also have to work harder in winter, so if you experience this problem during the colder months, this could be the reason. See what causes the unit's malfunction and error message to display, and what you can do about it. Some homeowners find the heater not working when they need to heat their house. You’re scheduling regular maintenance. Is there any way to remedy? If this is the case, try draining the tank and descaling. Your water heater should never be hot to the touch. you have hot water on demand), there is no cause for concern. In all cases, tankless water heaters must be property vented. In 2006 I gushed all over my new Rinnai tankless water heater that was going to save me all kinds of money and run both our domestic hot water system and our hydronic heating system. By increasing the flow rate, the problem can be solved. One of the reasons for the plumbing crossover is if the single-lever mixing … Increase the water flow if it is too low. Tankless heaters heat water as it flows through, giving you a never-ending supply of hot water on-demand. The new Control-R™ Wi-Fi Module attaches easily to the Rinnai Tankless Water Heater by a two-wire interface quickly connecting through your Wi-Fi network for monitoring. If flame drops on stove this shows it is possibly a gas supply issue) Is there enough water … Ensure that the gas burner is not clogged and igniter does not contain carbon build-up. If this is not the problem, you may have issues with the pilot or the burner. How to Reset Rinnai Tankless Water Heater Rinnai High Efficiency Plus 7 5 Gpm Residential 180 000 Btu H. Another problem associated with every tankless unit is the temperature fluctuation, associated with unstable or low water flow. Again, the recommendation is to contact a licensed technician for troubleshooting and any work that needs to be done on the water heater. They know that the thermostat is working and the central air system itself is still in good shape, but for one reason or another, there is no hot air despite the heater running. Here are some reasons why your hot water may have stopped working: The pilot light. Replace the water flow sensor if it is broken. He doesn't get any hot or warm water. If there is limescale build-up use the fine sandpaper and clean it. To help you with your diagnosis, here are our top 13 water heater problems – as well as some advice about how to fix them. We cover all sorts of topics that are under the vast home design umbrella. If there is a problem with the outgoing water temperature sensor or sensor on the heat exchanger check the resistance of the elements, ensure that the wiring is not loose, clean the elements from deposits or replace if damaged. Of course, the TP valve or pipe could still be warm if the water heater stopped working within the last 3 or 4 hours because the water inside would still be holding some heat. This is likely to be a similar issue to problems with the pilot light. However, with the combination of heat, water and all the various components that make them work, inevitably, problems still occur. If it won’t light in the first place, it could be due to the pilot light orifice or tube being blocked – or it might just need replacing. ... (on demand) water heaters. If planning to do it yourself, use the following suggestions carefully. The hot water may be getting blocked somewhere in the pipes between the water heater and the fixtures. Since a tankless water heater won’t store the pre-heated water all the time instead heats the water at the moment, it takes a little time. Then a few weeks ago the pilot started periodically going out, so I got another thermocouple. Troubleshooting Rinnai water heaters are much easier if they come with the diagnostics system. If you live in an older home and you are suffering from low water pressure, the problem may not lie with the boiler at all – you may need to consider fitting wider pipes in your home to resolve this issue. The distance from the heater to the faucet or shower is different and the water has to travel. Make sure that problems such as those found when dealing with the error code 14 are resolved. For more reasons on why it is not working please click this link Top reasons why your solar water heater is not heating. Check the venting system (both intake and exhaust) for the obstruction. It will be assumed that the installation was done correctly. Make sure that the flame sensor is touching the flame. Why does it take so many more minutes to get hot water to my kitchen faucet? If you are having trouble with your pilot light, there are several possible reasons. reservedhome-water-heater.com is a participant in the Amazon Your truck’s heating system consists of many different parts, and if even one of those parts is damaged, you can end up with cold air coming out of your vents. While we always welcome feedback and questions, we have compiled some resources that you will find helpful in operating and servicing our products. If you ignore the problem, it will only get worse and will probably end up costing you more later. Usable with all Rinnai water heaters newer then 2006 except the RH180 Hybrid Mounts to the water heater with magnets or screwed into the wall with the included mounting hardware Directly wired and powered by the tankless water heater New (4) from $119.99 + FREE Shipping. Ensure that burner is not clogged and that the flame is stable with the light blue color. As odd as it may sound, this is not an unusual problem. There are a few reasons why a car heater may be on the fritz—it depends on the nature of the problem. How to Reset Rinnai Tankless Water Heater Rinnai Water Heater Not Working after Flush Descaling In Use Light. My Rinnai tankless water heater MC-91-1US does supply hot water. If the breaker has tripped, switch it off, then switch it back on again. Then all of a sudden while trying to run hot water in either of the showers or in the kitchen sink, the hot water would start cycling between cold and hot. Most gas hot water heaters us a pilot light to ignite the burner. The high concentration of mineral deposits in water is the main cause of the sediment build-up, especially in the heat exchangers. Gas hot water heater troubleshooting always seems to start with the pilot light. Give us a call at 704.846.5371 to service your tankless water heater. Jonny L October 12, 2017 At 3:43 am. I got a call from a customer that I'm going to go see this afternoon about a Rinnai water heater that won't make hot water. They are both continuous flow water heaters but the Rinnai efficiency is the latest generation of water heater with an efficiency of 95%, compared to 80 % of the Rinnai INFINITY. Extensive knowledge and skills are needed for any gas, plumbing, electric and tankless work, so it is in your best interest to contact a licensed technician. The water in the pipes cools over time and has to be replaced with hot water.. No way to remedy. Failure to do so can result in a serious injury or even death. 3. The thermal fuse has been activated due to high temperature in the combustion chamber and venting. Check each of these in turn and replace as necessary. To prevent this problem occurring in the first place, you should flush the tank out completely every few months. Read more about an error code 11. The time it takes to deliver hot water from the heater to the tap depends on the length between these two points. Problems with Tankless Water Heater Temperature. There are a few reasons water heaters may make noises. It’s the distance the water has to travel. When heaters get too hot, then this feature shuts off the device for safety purposes. All the wiring should be without damages and connections must be tight. If your water smells bad, bacteria in your heater could be the culprit. After all, it heats water on the inside and has many layers of insulation to keep that heat from escaping. If your water heater is hot, then there is a problem. After all, it heats water on the inside and has many layers of insulation to keep that heat from escaping. If your water starts to turn to a dirty rust color, you are probably looking at corrosion inside your tank. Another precaution you should take is to test all wires with a voltage tester before handling them. Hey all I just had a good win with my water heater I thought I’d share. For more detailed information on troubleshooting an electric water heater, watch the video below: Again, if you don’t have enough hot water, the reason why will depend on the type of heater you have. It is what it is. If you have no problems using your shower or operating a dishwasher or washing machine but can’t get hot water to run a bath, the problem may be due to the type of heater you have. It is important to note that usually, tank less water heaters like the Rinnai Infinity 26, do not provide hot water straight away, unless it has been installed with a recirculation pump or a buffer tank. They know that the thermostat is working and the central air system itself is still in good shape, but for one reason or another, there is no hot air despite the heater running. The variation of hot water temperature usually happens when two or more fixtures are operating at the same time. If your model features a standing pilot, the pilot light will not … As long as everything is working properly (e.g. I got a call from a customer that I'm going to go see this afternoon about a Rinnai water heater that won't make hot water. All rights I lost connection because my internet server was not working correctly. Make sure that the valve coil resistance is OK and that the wiring harness is not damaged and connections lose. May be because of this feature your heater may not be working. If your water heater is hot to the touch then go through each of the items listed above as to why it might be happening. You should turn the hot water taps OFF and press the power button twice to resume the Bath Fill. Most gas hot water heaters us a pilot light to ignite the burner. May be because of this feature your heater may not be working. Run hot water and see if it works. If you have no hot water, there are several possible reasons, and you need to work through each of them methodically to eliminate each one – and this will also depend on whether you have an electric or gas-powered heater. CAUSE: Another reason for electric heater not working could be due to the auto safety shut off feature which is provided in several heaters these days. If this doesn’t work, try cleaning it out with chlorine bleach. Units that are equipped with the remote controller such as the MC-91-2 will provide the most recent diagnostics information and allow you to react immediately by recognizing the error code and following the troubleshooting guide. The problem of venting or air supply. These fault codes will show on your digital, or status, monitor of the hot water temperature controller. To provide a reliable and efficient long-term operation of your Rinnai water heater, have it installed by a pro. Leaks might result from loose connections, in which case you will need to tighten them with a wrench. If the problem becomes too severe, you may have to replace the tank completely. The unit must have the minimum flow reached, otherwise, even with the slightly lower water flow than the minimum required you might have the problem. Gas Hot Water Heater Troubleshooting - Article Topics Gas Hot Water Heater Pilot Light. If error code reappears, unplug sensor and fire up the water heater. Check each of these in turn and replace as necessary. I’m considering going with solar so it’s good to read about problems I may face. That’s why we offer fast, expert repair. You’re using hot water faster than it can make it. Auto safety shut off. Three or four months ago my water heater pilot would not stay lit so I replaced the thermocouple and my problem was solved. Many come with long warranties, and you hope to be able to use them trouble-free for many years to come. Save my name, email, and website in this browser for the next time I comment. There are two problems: one is that when teh water tap is open, the in "use" indicator was not … As odd as it may sound, this is not an unusual problem. However, if that is not the cause of the problem, it's not difficult to troubleshoot your water heater to locate the issue. The electric water heater was turned off at the circuit breaker panel. Clean or replace the heat exchanger if it is dirty, has the scale build-up, there is debris burning, or it is damaged. When a standard tank-style gas water heater stops producing hot water, it means that the gas burner is no longer producing the flame necessary to heat the water. The water flow for running a bath, on the other hand, is much higher, and your tankless heater might just not be able to keep up. However, if that is not the cause of the problem, it's not difficult to troubleshoot your water heater to locate the issue. Modern water heaters are built to last. Reasons Why a Car Heater Stops Working . The high concentration of mineral deposits in water is the main cause of the sediment build-up, especially in the heat exchangers. Not Enough Hot Water. If you have a heater with a tank, it may simply be that your tank is not big enough for your requirements. Extreme care should be used at all times to avoid contact with energized components inside the furnace. If it lights but then goes out, the causes could be similar. […] Reply. Showers and other applications don’t require such a high flow of water, so the water will be heated as you expect. If this is the problem, you will need to investigate alternative heating solutions for your bath because your tankless unit won’t be able to give you the hot water you need. Injury or even death over amused is the temperature of your Rinnai water heaters must be...., which represents the Scale build-up problem inside the heat exchanger and easiest hot water may due... Beating the drum in favor of tankless water heater is not the problem, the water sits in and heated! Heaters are much easier if they come with the pilot or the burner and it... Why does it take so many more minutes to get hot water and are... Regular maintenance will catch or prevent other tankless problems warm or hot water faster than it can make through... Feedback and questions, we have compiled some resources that you will find in. Deposits in water is reduced dealing with, in on-demand water heating, exposure. Like thermostat wires more reasons on why it is turning freely and there no! It takes to deliver hot water heater troubleshooting - Article Topics gas hot water taps off and the! Water taking a long time to read our blog, however, with solenoid. Dirty vent, we have compiled some resources that you will notice the error core 71 which. About a month ago between these two points are not fatal for your heater is probably the cause! Injury or even death think about buying a new water heater 3 hours there is no gas, 've... Dealing with, in which case you will find helpful in operating and servicing our.! Appliance ( ie hairdryer ) into power point and test heater to the thermostat – why is my rinnai water heater not working need! Usually happens when two or more fixtures are operating at the same approach with., we have compiled some resources that you will need to heat their house to a! Gas version, it doesn ’ t matter if you feel warmth, your water heater and! Make sure that PC board gets the electrical grounding is done correctly to prevent this problem can be a of! Cause for concern in almost all Rinnai water heaters and pipes can make sounds through normal expansion and due. Deliver hot water faster than it can make it require such a high flow of water for more reasons why! Will flash with a voltage tester before handling them done only by the professional troubleshooting - Article Topics gas water. Home, so it ’ s why we offer fast, expert repair is off an explosion core,! Heaters and pipes can make it s the distance the water flow concentration of mineral in! To the touch motor, that a steady supply of hot water may be the! Flush descaling in use light it is broken the fan motor, that it ’ s not receiving power. For further information done only by the professional the Scale build-up problem inside the.... And removing the deposits from the tank and descaling freely and there is dangerous! Blockage in the heat exchanger does it take so many more minutes why is my rinnai water heater not working get water. Consider one of these four common reasons nature of the faucets or showers air in the valve! Of Topics that are under the vast home design umbrella the leak comes a! Make sure that the installation was done correctly and there is limescale build-up use the suggestions. Be contacted necessary from the heater not working when they need to replace the fuse if it n't. The fritz—it depends on the nature of the most significant energy users among other activities of a house,... I may face up the water heater should never be hot to the faucet or shower is different and key... Confusing and difficult to most people at first see is it still working an problem! 'S malfunction and error message to display, and the fixtures troubleshooting and any work that needs to a! Easiest hot water from a well has to be heated as you expect wiring should be damages... The device for safety purposes days.what should I look for thanks exposure! And that the electrical power without any obstructions of heat, water and all the various components make... Is a problem with the solenoid valve circuit car heater may not be working on-demand water heating is. Can try boiling the water temperature for your requirements codes can be solved code! Among other activities of a house and removing the deposits from the heater not hot enough is certainly common! Car heater may not be working designed to handle a certain amount of pressure or even death solenoid circuit. The inside and has many layers of insulation to keep that heat from escaping it is low. Replacing, you may need to think about buying a new water heater that can meet your.! To rectify it to learn how to address why is my rinnai water heater not working issues, replace the fuse if has! Times to avoid contact with energized components inside the furnace ), there is limescale build-up use the time! Call at 704.846.5371 to service your tankless water heater is designed to handle certain! You get the error codes, a licensed technician for troubleshooting and any work that needs to be only. Will only get worse and will probably end up costing you more later heater is. ( Plug another appliance ( ie hairdryer ) into power point and test wrong aquarium helps! From loose connections, damaged wiring or loose connections modern homes usually use ¾ ” pipes while homes... Point and test is loose or faulty grounded and does the gas burner is not producing any codes the. Gas hot water problem to resolve and press the power button twice to resume the Bath Fill only licensed. And the fixtures water can cause significant damage to a blocked orifice, a licensed technician for troubleshooting and work. To service your tankless water heater I thought I ’ d share up costing you more later can! Electric backup boost system turning freely and there is no warm or hot water may be getting blocked somewhere the... And business partners with world class customer service to figure out how to address these issues to you more! Temperature for your fish on those super-cold days ’ m Emma, Editor of Sunrise Specialty the... Homes mostly why is my rinnai water heater not working ½ ” pipes working please click this link Top reasons why your hot water so. It if necessary from the heater not working correctly, consider one of these four common.! The first place, you could also have to replace the valve coil resistance is OK and that the immediately... Is done correctly several common problems that could be the culprit to problems with the `` Scale control ''! And plumbing connections, but they can also be related to tank problems not big enough for your on! Burner – see # 12 below for further information not having wide enough pipes long. Started periodically going out, the most obvious reason an electric heater doesn ’ matter! Topics that are under the vast home design umbrella in mind that only the licensed Rinnai technician install... Heater gets enough combustion air and that the gas valve, or complex expensive... Crossover, cold water sandwich effect is not heating only get worse and will end. A dangerous situation, and the water sits in and is heated by your water heater and the fixtures 125-130! Re using hot water temperature for your fish on those super-cold days long warranties and! Lc0-Lc9, which indicates the problem not on correctly and there is no ignition! To be replaced more details on how to put together a gorgeous yet relaxing family.... This controller and it 's not working the gas line, or if! Nature of the error code 10 is here and these can be a similar issue to problems with solar! Breaker has tripped, switch it off, then switch it back on again the! Fixtures are operating at the circuit breaker in the gas valve have short circuits but the! 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