Thermocouple For Gas Water Heater

First shut off the gas valve on the water heater and the gas valve on the gas line near the heater.

Thermocouple for gas water heater.

It senses when the pilot light is on. I had purchased other thermocouples that were either the wrong fitting or were too short. Corrosion and buildup are some of the things that can affect a thermocouple. My heater was made in the 70 s and has worked well since.

Some gas fired heating equipment relies on an electronic ignition to ignite the flame. The gas water heater thermocouple is a safety device. The thermocouple on gas fired heating appliances is mounted to sense the presence of a gas flame or gas pilot flame. A faulty thermocouple or one that is simply dirty may consistently prevent the gas valve from opening or the pilot from staying lit.

This item works great and was priced good as well. A thermocouple or flame sensor is a device used to control gas flow in gas water heaters. This thermocouple worked great for my torpedo propane heater. 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.

Make sure the problem is not your water heater pilot light before you attempt this repair. This was the only thing that as gone out on it since it was brand new 40 years ago. Free delivery with 45 order. The thermoelectric effect that makes a thermocouple work is called the seebeck effect named after the german physicist who discovered it in 1821.

Then unfasten the three nuts that hold the thermocouple and the two gas tubes to the valve. 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. The burner typically sits loosely or under clips in the burning chamber and just slides out. Rheem protech pilot thermopile assembly kit for natural gas water heaters model sp20824 48 99 48 99.

Diy hot water heater repair. When the pilot is not lit the gas valve will not turn the gas on. 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. Set your store to see local.

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. They can prevent power from reaching the pilot light thus the water won t heat up. Set your store. 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.