Hot Water Heater Thermocouple Test

Discretion should be used if the reading is between 21 and 25.

Hot water heater thermocouple test.

Pilot light keeps going out. When the heat hits the hot junction or tip of the. 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. One probe of the meter should be connected to the copper sheath of the thermocouple and the other to the gas valve.

You know you have a problem. How do i install a new thermocouple. Anything under or hovering around the 20 millivolts mark means the thermocouple needs to be replaced. Acceptable range for most water heat.

How to test a thermopile s voltage using a multimeter. Sometimes when you try to light the pilot it does not want to stay lit. How to test a thermocouple with a multimeter. How to test a thermocouple for a water heater everyone who has owned a gas heater including furnaces or water heaters will know that from to time you have to light the pilot light unless you have the electronic ignition that automatically lights the pilot light.

How to test a thermocouple. Thermocouples designed for residential gas appliances such as fireplaces water heaters and furnaces are made for 30 millivolts. 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. If the pilot light doesn t stay lit check the gas water heater thermocouple by keeping the pilot button depressed.

That will help with a furnace thermocouple test. You ask a friend and the friend tells you the thermocouple is bad. So the next question how to test a thermocouple with a multimeter. 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.

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. A faulty thermopile may be at fault. In this episode of repair and replace vance shows how to replace the thermocouple in a gas water heater.