Hot Water Heater Thermocouple Test

In this episode of repair and replace vance shows how to replace the thermocouple in a gas water heater.

Hot water heater thermocouple test.

You ask a friend and the friend tells you the thermocouple is bad. It also is good for water heater thermocouple testing. Sometimes when you try to light the pilot it does not want to stay lit. Measure the current by using the multimeter device set on millivolts.

If the pilot light doesn t stay lit check the gas water heater thermocouple by keeping the pilot button depressed. How to test a thermocouple with a multimeter. That will help with a furnace thermocouple test. When the heat hits the hot junction or tip of the.

One probe of the meter should be connected to the copper sheath of the thermocouple and the other to the gas valve. It is comprised of two different types of metal which react differently to heat and expand at different rates signaling to the water heater when to turn on or off. The water heater thermocouple is a device that monitors temperatures in the water heater to determine whether it needs to heat up or turn off the heat. How do i install a new thermocouple.

So the next question how to test a thermocouple with a multimeter. How to test a thermopile s voltage using a multimeter. A faulty thermopile may be at fault. The reading should be between 25 and 30.

Discretion should be used if the reading is between 21 and 25. Acceptable range for most water heat. Anything under or hovering around the 20 millivolts mark means the thermocouple needs to be replaced. You know you have a problem.

Pilot light keeps going out. 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. How to test a thermocouple.