Why won't my pilot light stay lit on my boiler?
Keeping this in view, how do you clean a thermocouple on a boiler?
Use a screwdriver to loosen the screws and remove the thermocouple from the pilot assembly for cleaning. Use a piece of steel wool or the abrasive side of a sponge to gently remove the soot without damaging thermocouple. Avoid using cleaning products, especially those containing flammable chemicals.
Additionally, how do you know if you have a bad thermocouple? If you can't get the flame to light at all, and you're sure the gas is on, there's probably an obstruction in the pilot tube. If the flame lights and goes out when you release the gas control knob after holding it in for the recommended 20 to 30 seconds, that's the sign of a thermocouple malfunction.
Also Know, how do you change a thermocouple on a boiler?
Replacing a Thermocouple
- Shut off the gas and electrical power to the furnace.
- Remove the furnace's access cover.
- If the furnace has been running, wait 30 minutes for the thermocouple to cool completely.
- Unscrew the nut that holds the thermocouple end fitting into the gas control valve, using an open-end wrench.
Why is my boiler not igniting?
Burner won't ignite: This is the most common cause of a boiler failing to provide heat. If the gas jets on the burner will not ignite, no heat will warm up the water in the tank. The trouble may be due to a failed electronic igniter/pilot light, or perhaps trouble in the gas line.