Universal thermocouples, as the name implies work on most water heaters. They are available online and in home supply stores for a reasonable cost. The length and the thread type are the two concerns when purchasing one.
How do you know if your water heater thermocouple is bad?
A worn out thermocouple is one of the most common gas water heater problems. When thermocouples wear out, the pilot light goes out, the burner won’t light, and you will have no hot water.
Are all thermocouples compatible?
When purchasing a replacement thermocouple or flame sensor, it’s essential to make sure that it’s compatible with your particular furnace model. Honeywell, White Rodgers, and other manufacturers make universal replacement thermocouples, usually with a 30-millivolts (mV) rating for standing-pilot furnaces.
How do you jump a thermocouple?
To bypass the thermocouple:
- Move the tilts switch wire aside.
- Remove your thermocouple from the heater using an 8mm wrench.
- Pull the valve housing aside using your 13mm socket wrench.
- Remove the valve using your pliers.
- Put your thermocouple back into position.
Who replaces thermocouples?
Honeywell, White Rodgers, and other manufacturers make universal replacement thermocouples, usually with a 30-millivolts (mV) rating for standing-pilot furnaces.
Should thermocouple be in pilot flame?
If the pilot light goes out, the thermocouple detects it and shuts the valve supplying gas to the pilot. The pilot flame should touch the thermocouple at a specific level. If the flame covers the top of the thermocouple and burns steadily with a yellow tip, that’s just about right.
What is the purpose of a thermocouple on a gas water heater?
The thermocouple is a thermoelectric device that shuts off the gas supply to the water heater if the pilot light goes out. Its function is simple but very important for safety. The thermocouple generates a small amount of electrical current when it has been heated by the flame. This small amount of electric current keeps the pilot gas valve open.
How does a thermocouple work in a water heater?
How does the thermocouple work. The gas water heater thermocouple consists of two different metals, joined together, so when heated by the pilot flame a small electric current generates. The electric current, then, powers the electromagnet inside the gas valve and keeps it open.
What does the thermocouple do on my water heater?
The thermocouple is part of the pilot burner assembly and connects to the gas control valve on the outside of the water heater. It is a simple device that converts the heat from a burning flame into a small electrical current, allowing it to work like a switch to control the flow of gas from the gas supply valve .
What does a thermocouple on a gas heater operate?
A gas thermocouple works by creating a small amount of electricity that is sufficient enough to keep open the part of the gas valve that lights the pilot assembly. It acts essentially as a sensor which is connected to the main control valve. The thermocouple receives a small amount of heat from the pilot light,…
