Why does my gas water heater pilot light not stay lit?

Why does my gas water heater pilot light not stay lit?

Thermocouple Failure in Gas Water Heaters. If you have a gas water heater and the pilot light will not stay lit, it’s most likely due to a failed thermocouple that will need to be replaced. Thermocouple failure is a common problem with residential gas water heaters.

What does the thermocouple do on a water heater?

The thermocouple is a heat sensing probe that is part of the pilot assembly and sits just above the pilot flame. When the pilot light is functioning properly, the thermocouple will generate a small voltage that is fed back to the gas valve to keep the gas flowing to the pilot light.

What causes a gas water heater to shut off?

Thermocouple failure is a common problem with residential gas water heaters. The thermocouple is a thermoelectric device that shuts off the gas supply to the water heater if the pilot light goes out.

Why is my whirlpool water heater not working?

To add to what I wrote earlier: the primary problem of many water heaters in recent years has been a failure in the gas control valve/thermostat–particularly those with Unitrol valves. For the Whirlpools (see sticky above) a primary culprit was an ECO device that would shut off the gas.

The thermocouple is a heat sensing probe that is part of the pilot assembly and sits just above the pilot flame. When the pilot light is functioning properly, the thermocouple will generate a small voltage that is fed back to the gas valve to keep the gas flowing to the pilot light.

What happens if the pilot light on my water heater won’t stay lit?

The gas supply to the pilot assembly is controlled by this valve. If the pilot light won’t stay lit and the thermocouple is okay, then the thermostatic control valve may be defective. Replacement of this part should be performed by a trained gas technician.

Why does my water heater keep shutting off?

When a water heater keeps shutting off, or will not stay lit, that could mean there is a problem with the thermostatic control, gas valve, or thermocouple.

Can a thermocouple be replaced on a furnace?

I suspected the thermocouple and replaced it, but this didn’t fix the problem. I’ve used this furnace for over 15 years without replacing the thermocouple. Can someone recommend the next best course of action to keep my pilot lit?

Why does my gas water heater keep going out?

The pilot in my gas water heater (Aquamax 205) has been going out sporadically over the last 2 weeks. Yesterday, I replaced the thermocouple with a universal thermocouple and cleaned out the dust and soot from the burner area. After installation, I also did the detergent test to make sure the gas connections are secure and not leaking.

Can a gas water heater be replaced without a thermocouple?

Unfortunately, you will most likely have to wait for shipment of the thermocouple, which may take several days. If you are like most people and you do not want to live without hot water for several days, you may decide to replace the part without going through the warranty claim process.

The pilot in my gas water heater (Aquamax 205) has been going out sporadically over the last 2 weeks. Yesterday, I replaced the thermocouple with a universal thermocouple and cleaned out the dust and soot from the burner area. After installation, I also did the detergent test to make sure the gas connections are secure and not leaking.

Where is the thermocouple on a water heater?

The gas for the pilot assembly is supplied by the main gas valve and is monitored by the thermocouple. The thermocouple is a heat sensing probe that is part of the pilot assembly and sits just above the pilot flame.

How does a gas fired water heater work?

Most gas fired water heaters use a standing pilot to ignite the main burner. The gas for the pilot assembly is supplied by the main gas valve and is monitored by the thermocouple. The thermocouple is a heat sensing probe that is part of the pilot assembly and sits just above the pilot flame.

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