T_Roy
Oct 8, 2008, 06:36 AM
Hi.
I hope someone could help me. I have a York Stellar furnace and I am having a strange problem.
The air conditioning has worked well all summer. However, when I turned on the heat the draft inducing purge motor comes on and stays on. The heating cycle does not continue beyond that. I have 24 volts at the transformer secondary. I checked the thermostat by shorting the R to W and same problem exists. I checked the pressure switch by removing the rubber tube and sucking on it, it does switch and I did a continuity check on it and it does switch. I even tried to get the heat cycle to start by sucking on rubber hose and crimping it while measuring the voltage at the igniter, no voltage.
At this point I am thinking it is the control board, any thoughts would be appreciated. I pretty good with electronics but this has me stumped.
T_Roy
I hope someone could help me. I have a York Stellar furnace and I am having a strange problem.
The air conditioning has worked well all summer. However, when I turned on the heat the draft inducing purge motor comes on and stays on. The heating cycle does not continue beyond that. I have 24 volts at the transformer secondary. I checked the thermostat by shorting the R to W and same problem exists. I checked the pressure switch by removing the rubber tube and sucking on it, it does switch and I did a continuity check on it and it does switch. I even tried to get the heat cycle to start by sucking on rubber hose and crimping it while measuring the voltage at the igniter, no voltage.
At this point I am thinking it is the control board, any thoughts would be appreciated. I pretty good with electronics but this has me stumped.
T_Roy