I'm trying to determine the proper replacement for a pilot generator on one of our very old, retrofitted payne furnaces.
They both look like this:
I've seen possible replacements (750 millivolts) online, but I'm not sure about the millivolts necessary for our gas valve and I don't wish to harm the gas valve by supplying too much voltage.
The voltage from our functional furnace's generator reads between 400 - 450 millivolts yet it's old and maybe isn't generating the voltage that it used to when new.
Gas valve specs: ITT: K9G or K9C (it's hard to read)
Specs from the controlling thermostat: 'For use with Millivolt System and B54M gas valve only'
Does anyone have any idea if the 750 millivolt generators would be okay here or should I look for something in the 400 millivolt ranges?
Thanks for your insight,
P.S. we plan to replace the furnaces soon, but I'd like to keep them going for another year.