Why is my pilot light not staying on?
Reason #1: Bad thermocouple If the thermocouple is dirty, damaged or simply not lined up correctly, it may have trouble detecting the pilot light and could shut off the flow of gas to your system. Of course, if there is no gas flow to your system, your pilot light won’t stay lit.
Why do thermocouples go bad?
Poor Installation. One of the leading causes of premature thermocouple failure is simply poor installation, which can make any other problem much worse. Thermocouples need to be precisely placed and protected.
What is a bad thermocouple?
A bad thermocouple itself can prevent a gas furnace or boiler from working – if you can light the flame at the pilot manually but then the flame goes out when you release the manual gas feed valve, the thermocouple is probably bad.
How do you fix thermocouple?
To adjust the thermocouple, you must tighten the thermocouple nut with a wrench. Take care not to apply too much pressure to the nut — just tighten it slightly. Then try lighting the pilot. If the pilot won’t stay lit, replace the thermocouple with a new one of the same type. Here’s how to replace a thermocouple:
What is a gas fireplace thermocouple?
A gas fireplace thermocouple is often found among contemporary gas fireplaces. A thermocouple is an electronic safety device. It is used for ensuring safety of the ignition system and preventing fuel leakage. Most gas fireplaces have a start-up mode to allow heating of the thermocouple.
Poor Installation. One of the leading causes of premature thermocouple failure is simply poor installation, which can make any other problem much worse. Thermocouples need to be precisely placed and protected.
A bad thermocouple itself can prevent a gas furnace or boiler from working – if you can light the flame at the pilot manually but then the flame goes out when you release the manual gas feed valve, the thermocouple is probably bad.
To adjust the thermocouple, you must tighten the thermocouple nut with a wrench. Take care not to apply too much pressure to the nut — just tighten it slightly. Then try lighting the pilot. If the pilot won’t stay lit, replace the thermocouple with a new one of the same type. Here’s how to replace a thermocouple:
A gas fireplace thermocouple is often found among contemporary gas fireplaces. A thermocouple is an electronic safety device. It is used for ensuring safety of the ignition system and preventing fuel leakage. Most gas fireplaces have a start-up mode to allow heating of the thermocouple.
