Thermocouple For Gas Water Heater

It senses when the pilot light is on.

Thermocouple for gas water heater. Some gas fired heating equipment relies on an electronic ignition to ignite the flame. Set your store to see local. They can prevent power from reaching the pilot light thus the water won t heat up. When the pilot is not lit the gas valve will not turn the gas on.

Diy hot water heater repair. Rheem gasket replacement kit with thermocouple for fvir water heater model rh20064 19 98 19 98. This thermocouple worked great for my torpedo propane heater. A faulty thermocouple or one that is simply dirty may consistently prevent the gas valve from opening or the pilot from staying lit.

The thermoelectric effect that makes a thermocouple work is called the seebeck effect named after the german physicist who discovered it in 1821. The burner typically sits loosely or under clips in the burning chamber and just slides out. This item works great and was priced good as well. The gas water heater thermocouple is a safety device.

My heater was made in the 70 s and has worked well since. A thermocouple or flame sensor is a device used to control gas flow in gas water heaters. If the thermocouple is working you should be able to measure 30 to 40 millivolts of voltage at the connection end of the tube when the pilot flame is on. First shut off the gas valve on the water heater and the gas valve on the gas line near the heater.

Make sure the problem is not your water heater pilot light before you attempt this repair. Corrosion and buildup are some of the things that can affect a thermocouple. I had purchased other thermocouples that were either the wrong fitting or were too short. Then unfasten the three nuts that hold the thermocouple and the two gas tubes to the valve.

Rheem protech pilot thermopile assembly kit for natural gas water heaters model sp20824 48 99 48 99. A thermocouple can be found in diesel engines gas turbines kilns gas water heater temperature sensor in thermostats etc. If the pilot light goes out the thermocouple acts as a safety device by preventing the gas valve from opening and potentially filling the area surrounding the water heater with natural gas. The other end of the thermocouple s tubing connects to a port on the gas regulator or gas valve but not all of these systems use a thermocouple.

On older style heaters with standing pilot lights the device is typically called a thermocouple while on newer units with electronic ignition the same or virtually the same device is called a flame sensor. This was the only thing that as gone out on it since it was brand new 40 years ago. The thermocouple on gas fired heating appliances is mounted to sense the presence of a gas flame or gas pilot flame. A gas water heater in boise baton rouge buffalo or boston uses a thermocouple that includes a probe attached to a copper tube that screws into a port on the gas valve.