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i can check voltage on lunch in about 30 min.
just simply 24v DC, i should be able to watch 0 then after i start the furnace turn on sequence watch it attempt to power on.
is it possible to assume gas pressure is ok, (after i check 24v )
I would be willing to risk not buying a manometer and just replace the gas valve, can you reference my valve number and reccomend me a replacement?