Water Heater Pilot Light Goes Out When Button Released

It s responsible for closing the gas valve when it senses the pilot light is off.

Water heater pilot light goes out when button released. Pilot light won t stay lit after releasing bypass button. If the pilot doesn t relight if it goes out right after lighting or if the pilot light keeps going out by far the most common cause is a bad thermocouple. The thermocouple is triggered by an electric current produced by the pilot light. The light goes out due to improper venting or air supply.

Its a modine model pa75ab 01 11. Contact cabrillo if your water heater s pilot light continues to go out if your pilot light goes out frequently or if it is not burning bright blue contact cabrillo. The problem is likely something similar to what we mentioned above such as a faulty or dirty thermocouple and it will need to be taken care of by a professional plumber. Normally the gas button is off for 5 minutes or more and then turned to the pilot position and pushed down down for a minute or so while the pilot itself is lighted when operating correctly releasing the button to let it rise will keep the pilot flame going so that the button can be turned completely to the on position.

The button you press to light the pilot bypasses the thermocouple. The most likely of those is that the thermocouple needs to be replaced. Valve coil 121 ohms. If the water heater burner starts then that would narrow down on where the problem is although it is still probably not user serviceable.

Upon initial install the pilot would not stay lit after releasing the bypass valve so i replaced the thermocouple. 11 16 2016 by sales cameraparts4you. Therefore a dirty thermocouple might be the reason why your water pilot keeps going out. When the water heater pilot light goes out first try relighting it following the directions on the water heater label.

After lighting the pilot while holding down the button for 90 seconds let go hold a lighted fireplace match flame where the pilot light was and then turn the button to the run position. When you release the button the thermocouple ensures that unburned gas doesn t get released by shutting off the gas when it s not heated by the burning pilot light. Check out this article to learn more about condensation and its effect on the water heater. It acts as a safety device to prevent gas leaks.

Thermocouple produces 20 mv. This is in a used hanging garage natural gas furnace.