Re mercury flame sensor replacementI know a guy, who wired a GM turn signal flasher in place of the mercury switchApparently its the same resistance as the flame up against the bulbThe odd thing is the mercury safety switch is a redundant safetyThose utilize the generator as the flame safetyFor the record that gentlemans fireplace
For both types of mercury flame sensors inspect the pilot burner, flame sensor bulb, and the adaptors and clips used to hold the bulb within the pilot burner bracketNote the exact arrangement of clips and adapters so that the same arrangement is used for the replacement flame sensorFor both types of mercury flame sensors note the
Mercury Flame SensorsMany people frequently confuse mercury flame sensors (MFS) with thermocouples because each has a similar sensor that extends into the pilot flame and a tube connecting the device to the gas valveMoreover, they have the same function in the control system of a gas fired appliance, but there are significant differences.
White Rodgers Mercury Flame Sensor, " Element, A Plug in feature requires no additional electrical connections or mounting devices, Sensor combines a rugged Snap Action SPDT switch and powerful mercury actuated thermal element, May be used with natural, manufactured or mixed gases and with LP gases where means are provided for obtaining automatic pilot gas shut off, No button to
This section contains several different types of Mercury Flame SensorsAfter the pilot light is ignited and enough heat is detected by the Mercury Flame Sensor, it deactivates the ignitor and energizes the circuit which allows the gas valve to open for the main burners.
OEM mercury type flame sensor switches are hard to come by now and many manufacturers offer a conversion kit that performs the same functions as that flame sensor switchSo, a conversion kit might be available for your unit that's supplied and certified by the manufacturerBe aware that the kit must be installed by a certified technician.