Search results

This was my thought as well, Ive serviced a bunch of the H series heaters and understand that its a 2 stage valve. After the purge cycle, you hear the first click of the first stage, but never the second where gas actually starts to flow and ignition takes place, its at that point the 24 volts...

IF code on a 1 year old H250f that ran fine last year. Everything checks out for start up except the gas valve gets 24 volts for about 3 seconds then drops to zero. Is the valve momentary or constantly supplied power while in operation?