|Joined: ||Mon May 29th, 2006|
|Location: ||Washington USA|
|Thanks for the quick response, ok on the gas valve, there are 4 leads. yellow, white, orange/red and blue. the blue goes to the pressure/limit/rollout switch loop. the other three to the control module, which one or two should show 24ac? thanks...also i take it the blue should be showing something, as not having a connection on it(ie one of the safety switches) will pull the gas valve shut, right?
Is the ignition control sending the correct voltage (usually ~24v) to the gas valve when the ignitor is glowing? If yes, replace the gas valve, if not replace the controller . A lot of those W-R modules are not available but a Universal silicon carbide hot surface module will work just fine. Could also be some thermal limit switches in between the control and the gas valve, be sure and check the modules terminals for voltage output at the correct time if you suspect it may be faulty.