DIYbanter - View Single Post - gas fireplace won't start-up

Tony Hwang

wrote:
The pilot light flame must hit the thermocouple correctly, or the voltage the thermocouple generates may not be enough to operate the main gas valve, while it is enough to keep the pilot light lit. Try adjusting the pilot light so that it more directly hits the thermocouple, check for clogged holes in the gas supply for the pilot as the previous poster found to be his problem.

Hi,
Main valve is controlled by 24V control voltage, not by thermocouple.
thermocouple's job is to keep the pilot on.