I get to wake up on New Year's Eve to a furnace that clicks but doens't heat. Yum! I hope ya'll can help.
It's a Bryant forced-air natural gas unit, model 394GAW036075.
Even when the thermostat is set to OFF the pilot ignitor still fires away, about twice per second. If the thermostat is set high enough to call for heat then the sparks get faster (about 3 or 4 per second) but the pilot does not light.
I turned off the power, cleaned the ignitor with compressed air, and checked the wires for good connection with no change. No sign of shorting.
At first, that seemed to work as the ignitor started working normally. I put the cover back on and it was back to clicking. I started to take off the cover and in the process banged near the black box that seem to power the ignitor spark and it started working again, but only for a cycle or two and now it isn't working at all.
Disconnecting the thick orange lead from the ignitor make the sparking stop (of course), but there is still a clicking noise from the black box.
So how do I figure out if it's the black ignitor box or upstream of it?
-- Rich
It's a Bryant forced-air natural gas unit, model 394GAW036075.
Even when the thermostat is set to OFF the pilot ignitor still fires away, about twice per second. If the thermostat is set high enough to call for heat then the sparks get faster (about 3 or 4 per second) but the pilot does not light.
I turned off the power, cleaned the ignitor with compressed air, and checked the wires for good connection with no change. No sign of shorting.
At first, that seemed to work as the ignitor started working normally. I put the cover back on and it was back to clicking. I started to take off the cover and in the process banged near the black box that seem to power the ignitor spark and it started working again, but only for a cycle or two and now it isn't working at all.
Disconnecting the thick orange lead from the ignitor make the sparking stop (of course), but there is still a clicking noise from the black box.
So how do I figure out if it's the black ignitor box or upstream of it?
-- Rich