Water Heaters - Page 5 - Answered Questions & Fixed Issues

If you have already descaled your Tempra 24 Tankless water heater and replaced the flow sensor, but the high limit switch is still tripping, there could be a few other possible causes of the issue: Malfunctioning thermostat: A malfunctioning thermostat may cause the heating modules to overheat, which can trip the high limit switch. You may need to replace the thermostat if this is the case. Insufficient water flow: The Tempra 24 Tankless water heater requires a minimum flow rate of 0.5 gallons per minute to operate properly. If the flow rate is too low, the heating modules may overheat and trip the high limit switch. Check the water flow rate to ensure it meets the minimum requirement. Electrical issues: If the wiring or electrical connections are faulty, it may cause the heating modules to overheat and trip the high limit switch. You may need to inspect the wiring and connections to ensure they are intact and properly connected. If none of the above solutions work, it may be best to contact a professional technician for further diagnosis and repair. It is unlikely that you would need to replace the entire unit if the issue is isolated to a single heating module.

This issue may be caused by several factors, including a malfunctioning or improperly sized water heater, clogged pipes, or a malfunctioning thermostatic mixing valve. Here are some steps you can take to troubleshoot the issue:

1. Check the size of your water heater: If your water heater is too small for your home's needs, it may not be able to supply enough hot water to all areas of your home. Consider upgrading to a larger water heater.
2. Check for clogged pipes: If your hot water pipes are clogged with mineral buildup or debris, water flow may be restricted, causing reduced hot water supply. Have a plumber inspect your pipes and clean them if necessary.
3. Check the thermostatic mixing valve: If your home is equipped with a thermostatic mixing valve, it may be malfunctioning and causing the issue. Have a plumber inspect and replace the valve if necessary.
4. Check for leaks: If there are any leaks in your hot water pipes, the water pressure may be reduced, causing reduced hot water supply. Have a plumber inspect your pipes and repair any leaks.
5. Adjust the temperature settings: Make sure the temperature settings on your water heater are properly set. If the temperature is set too low, you may not be getting enough hot water.

If these steps do not resolve the issue, it is recommended to contact a licensed plumber to inspect and repair your hot water system.

The burner cover plate for your Rheem RRNL-B030JK08E unit can be obtained from an authorized Rheem dealer or distributor. You can visit the Rheem website to locate a dealer or distributor in your area. Alternatively, you can contact Rheem customer service for assistance in obtaining the burner cover plate. Be sure to have the model and serial number of your unit available when contacting Rheem customer service.

check the pressure relief valve for correct operation

L'errore EA su una caldaia Elm Leblanc indica un problema di accensione della fiamma, che potrebbe essere causato da diversi fattori. Nella tua situazione, sembra che la fiamma si accenda correttamente, ma poi si spenga improvvisamente, portando alla comparsa dell'errore. Ci? potrebbe essere causato da una variet? di fattori, tra cui:

1. Un sensore di temperatura difettoso o danneggiato, che potrebbe impedire alla caldaia di rilevare la temperatura corretta dell'acqua.
2. Una valvola del gas difettosa o sporca, che potrebbe impedire la corretta alimentazione del gas alla fiamma.
3. Un problema con il tiraggio dell'aria, che potrebbe impedire una combustione adeguata.
4. Un problema con il controllo della fiamma, che potrebbe impedire alla caldaia di mantenere la fiamma accesa per un tempo sufficiente.

Poich? hai gi? sostituito il primario scambiatore, potrebbe essere utile contattare un tecnico specializzato in riparazioni di caldaie per analizzare il tuo problema. Un tecnico esperto potr? eseguire un controllo approfondito della caldaia e identificare il problema specifico.

It is generally not recommended to set your water heater to the highest setting. Water heaters typically have a maximum temperature setting, usually between 120°F and 140°F, and setting the temperature higher than this can be dangerous. Water that is too hot can cause scalding and skin burns, and can also damage pipes and fixtures. Additionally, high temperatures can cause increased wear and tear on the water heater, reducing its lifespan and potentially leading to costly repairs. If you're running out of hot water, there are a few other things you can try before turning up the temperature. For example, you could insulate the hot water pipes to reduce heat loss, or upgrade to a larger water heater if your current one is too small for your needs. If you do decide to increase the temperature, be sure to do so gradually and monitor the water temperature to ensure it doesn't get too hot.

the low pressure/flow minimum is for safety and protection of unit and no adjustment to do so

19 gallons for a standard machine 7 gallons for a HE model

The lpg either cylinder or gas tank must have a pressure reducing valve which sets the gas pressure to that required by the boiler.
After that valve the piping is the same as for any gas boiler.Where the pipe goes through the wall floor of similar - make sure the pipe has a sheath to protect it from gouges and or wet

The regs - Not sure about the USA but here in UK we have comply. different regs for tank or cylinder
The lpg supplier is a good source of info

this from Rheem error codes Error Code 60 FAULT = Hot Water Temperature Abnormality

1. Press the Power button to clear the Error Code. If Error happens again:
2. Ensure water heater inlet and outlets are open and water is supplied to the water heater.
3. If Error happens again:
4. Ensure water heater inlet and outlets are open and water is supplied to the water heater.
5. Check the pump operation.
6. If it doesn't work, ensure wiring connections to pump.
7. If even supply power to pump and doesn't run it, replace the pump.
8. If Error happens again:
9. Verify recirculation loop length is within specification. Air purge is not enough.
10. Too much restriction on recirculation loop.
11. Return loops are clogged.
12. Check the recirculation loop condition.

The issue of the Paloma tankless water heater displaying error code C7 38 may be caused by several factors, including a problem with the thermistor or temperature sensor, an issue with the gas valve or gas pressure, or a malfunction with the control unit or circuit board. To troubleshoot, try checking the thermistor and temperature sensor, and verifying the proper functioning of the gas valve and gas pressure. If the problem persists, consider seeking professional repair or service.

The Bosch JSRZ 5-T PG tankless gas water heater may not start automatically because of problems with the magnetic sensor valve, power supply, or control unit/thermostat. Possible troubleshooting steps are:

• inspect the water inlet valve and replace if faulty
• confirm that power to the unit is functioning
• if the problem continues, seek professional repair service.

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check this out..... https://www.youtube.com/watch?v=eMeq-fRH-wE

Check flame sensor is clean . check pressure switch is working and connections are tight and hoses are not split check condensation pipe is not blocked

My Navien is doing the same thing, and it's 6 days old. The older unit did the same thing as well... I'm guessing it has nothing to do with the unit, and something to do with the line... I'd love to get to the bottom of it as well.. :(

Do you live in a climate where the hot water line could have frozen? If your heater did freeze up, that could be very bad. This is because water actually expands when it freezes and can do a lot of damage to pipes and to the water heater itself. My other thought is possibly a clogged in line water filter. But typically a clogged water filter would make it run with reduced pressure rather than a complete shutdown all water flow.

Error Code 20 on a Noritz tankless water heater (model EZ98DV) is typically associated with an issue with the "priority" function, which is a feature that allows the water heater to prioritize certain uses of hot water over others. When the "priority" light is flashing and error code 20 is displayed, it typically means that there is a problem with the priority function and it needs to be reset. To fix this issue, you can try the following steps:

1. Turn off the power to the water heater by turning off the circuit breaker or removing the fuse.
2. Wait for about 10 seconds and then turn the power back on.
3. Press and hold the "priority" button for about 5 seconds, until the "priority" light turns off.
4. Turn the water heater back on and check to see if the error code has cleared and the "priority" light is no longer flashing.

If the error code 20 still appears and the priority light is flashing, it's best to consult the manual or a professional technician to diagnose the problem. It's important to note that the error code 20 can also be caused by other issues such as, faulty thermistor, faulty thermistor harness, faulty PCB, etc. So, it's best to get it checked by a professional.

https://www.fixya.com/support/t13643459-a2_af_error_codes

There are FAQ's at the following location:

http://www.titantanklessheater.com/page/1227557

Could be a few things. Most common are reversing the water flow (putting your cold water input into the units hot output instead of the other way around) or not bleeding the air out of the unit (running water for a minute with the unit off) before using it. Could be a bad flow detector switch or an internal malfunction as well. If you review the link above and my tips and don't find anything then contacting the company is probably your best option.