Is there an error code on a remote control or unit's display and you need help to understand it for the successful troubleshooting? Rinnai tankless heaters are equipped with the "Scale Control System" that provides a limescale and corrosion protection. The error codes from the above were taken from the manufacturer instructions, so troubleshooting Rinnai becomes easier and convenient for readers of this website. The most obvious reason an electric heater doesn’t work is that it’s not receiving any power. The next step is to check the high-temperature cut-off. 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. Sometimes water heaters and pipes can make sounds through normal expansion and contraction due to heat. This is especially common if your water comes from a well. Make sure that PC board gets the electrical power without any obstructions. When heaters get too hot, then this feature shuts off the device for safety purposes. 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. My new water heater does not heat water. My tankless water heater is not working. Not Enough Hot Water. If you have a gas heater, check to see if the gas valve is open. To provide a reliable and efficient long-term operation of your Rinnai water heater, have it installed by a pro. As odd as it may sound, this is not an unusual problem. If the water flow in your tankless water heater is too low and dips below the flow activation rate, the main gas burner will turn itself off. Another problem associated with every tankless unit is the temperature fluctuation, associated with unstable or low water flow. The water in the pipes cools over time and has to be replaced with hot water.. No way to remedy. Hey all I just had a good win with my water heater I thought I’d share. Gas Hot Water Heater Troubleshooting - Article Topics Gas Hot Water Heater Pilot Light. When it comes to broken heaters, there are several common problems that could be the culprit. To prevent this problem occurring in the first place, you should flush the tank out completely every few months. Services LLC Associates Program, an affiliate advertising program designed to Extreme care should be used at all times to avoid contact with energized components inside the furnace. Also, replace the board if you get the error core 71, which indicates the problem with the solenoid valve circuit. Clean or replace the heat exchanger if it is dirty, has the scale build-up, there is debris burning, or it is damaged. There are two screws that the controller wiring is held in place by they are like thermostat wires. For more reasons on why it is not working please click this link Top reasons why your solar water heater is not heating. If you have a gas version, it could be related to the burner – see #12 below for further information. Give us a call at 704.846.5371 to service your tankless water heater. 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. Why does it take so many more minutes to get hot water to my kitchen faucet? Replace the element if it is needed. This is especially true if they are not professionally installed—in many cases, gas lines need to be extended in order to accommodate for an on-demand (tankless) water heater. Start by checking the circuit breaker to see if it has been tripped. There are some more … Jonny L October 12, 2017 At 3:43 am. This is how to fix a Rinnai Water Heater that is not working following a flush of the heat exchanger. Another precaution you should take is to test all wires with a voltage tester before handling them. Some more good information on hotwatercylinders.nz. You’re scheduling regular maintenance. 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. 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. As odd as it may sound, this is not an unusual problem. Some homeowners find the heater not working when they need to heat their house. 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. We are authorised installers and repair technicians for all the solar hot water heater brands including Solahart, Rheem, Edwards, Apricus, Quantum and many more. Heater Not Working. While using clothes washer in mid cycle the gas in the water heater was ignited with a large puuf and a heavy flame could be seen inside and throughout the bottom heater area, (way to intense) and a pulsating sound. provide a means for us to earn fees by linking to Amazon.com and affiliated 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. Flushing your tank can help, or you can try boiling the water to maximum temperature to kill all the bacteria. 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. This problem can be a result of picking the wrong aquarium heater placement or fish tank heater light not on. If you have a corroded tank, it will need to be replaced entirely. 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. 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. 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. 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. 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. 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. If you have a heater with a tank, it may simply be that your tank is not big enough for your requirements. A detailed guide on how to troubleshoot error code 10 is here. It may be due to a blocked orifice, a problem with the thermocouple or a dirty vent. He doesn't get any hot or warm water. You’ve paid your gas bill (your tankless water heater can’t heat water without a steady gas supply!) We cover all sorts of topics that are under the vast home design umbrella. This is the simplest and easiest hot water problem to fix. While having your gas water heater not hot enough is certainly a common issue, there are many other common water heater problems. 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. Tankless water heaters are not immune to problems. Ensure that the gas burner is not clogged and igniter does not contain carbon build-up. I turned it back on. If it has, it’s an easy fix – simply turn it off and turn it back on again. Any issue that is recognised will flash with a fault code. Hi, I’m Emma, Editor of Sunrise Specialty. Check each of these in turn and replace as necessary. If flame drops on stove this shows it is possibly a gas supply issue) Is there enough water … Your water heater should never be hot to the touch. I lost connection because my internet server was not working correctly. 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. 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. Beating the drum in favor of tankless water heater is not over amused. This problem can be a result of picking the wrong aquarium heater placement or fish tank heater light not on. you have hot water on demand), there is no cause for concern. 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 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. That’s why we offer fast, expert repair. Tankless water heaters are not immune to problems. Use the same approach as with other sensors above. 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. 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. 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). 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. If the breaker has tripped, switch it off, then switch it back on again. Three or four months ago my water heater pilot would not stay lit so I replaced the thermocouple and my problem was solved. However, if that is not the cause of the problem, it's not difficult to troubleshoot your water heater to locate the issue. If it is damaged replace the board. Water heating is the most significant energy users among other activities of a house. There are some more … Test the igniter and see is it still working. 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. Possible reasons for water taking a long time to heat include faulty heating elements, sediment build-up on the elements and a faulty thermostat. Test these and replace as necessary. 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. It has been working flawlessly up until about 2 weeks ago. 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 a controller is fitted check that it is on also) Check gas supply (Turn gas stove top on then turn hot water tap on. The Rinnai efficiency has an additional heat exchanger. 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. Not bad article. 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. 3. Older homes mostly have ½” pipes while modern homes usually use ¾” pipes. An absence of hot water generally occurs as a result of all the hot water in the tank being used up--for example, by running both the washing machine and dishwasher at the same time. You should turn the hot water taps OFF and press the power button twice to resume the Bath Fill. Make sure that fan is operating correctly, that a sensor is not damaged or wire connection is lose. This is the simplest and easiest hot water problem to fix. 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. Make sure that the flame sensor is touching the flame. My Rinnai tankless water heater MC-91-1US does supply hot water. 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. Troubleshooting Rinnai water heaters are much easier if they come with the diagnostics system. While the water sits in and is heated by your water heater… I’m considering going with solar so it’s good to read about problems I may face. If you have a gas version, it could be related to the burner – see #12 below for further information. By increasing the flow rate, the problem can be solved. I have a tankless gas water tank. One of the most common issues many home-owners are dealing with, in on-demand water heating, is exposure to hard water. ... (on demand) water heaters. For more reasons on why it is not working please click this link Top reasons why your solar water heater is not heating. As long as everything is working properly (e.g. 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. Gas Hot Water Heater Troubleshooting - Article Topics Gas Hot Water Heater Pilot Light. 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. Be that your heater is not working please click this link Top reasons why a car heater may be. With solar so it ’ s why we offer fast, expert.. Water in the gas line, or the vent system ( both intake and exhaust ) the. Bedroom, either is no warm or hot water heater is not defect... 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Article Topics gas hot water coming out of any of the problems such as those found when dealing with thermocouple. Igniter does not contain carbon build-up damage to a more powerful unit system for this probably...
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