HELP ...
I am trying to troubleshoot a Payne furnace problem and I'm almost ready to call a service tech but will try this newsgroup first:
background:
- furnace sat for almost a year, installed new in 1998
- I lit the furnace about 2 weeks ago when service was turned on
- electrician (non-licensed) has been rewiring the house, replacing old "tube and knob" wiring.
- furnace and thermostat ran fine for 2 weeks
- furnace circuit to box was replaced with new wire to 20amp breaker
What I've done:
- replaced thermostat
- checked continuity of thermostat wires (OK)
- replaced HSI because sanding on old one cracked it (I was warned)
- component test jumper wire between COM and TEST shows continuous LED according to front panel this means: "Control has 24V power"
- the 3amp fuse link is still good
- checked hot wire (115V) and ground wire (no current)
Q: what the heck does that mean - what does it indicate? just that 24V is going to the board? Status OK? Q: how do I test the breaker itself; was not a new one but I'm getting
115V at the black wire feeding the board Q: if I inadvertently swapped the red and white wires from thermostat to board would this matter? (2-wire thermostat) Q any way to test the board?When I turn on the pilot control and feed power to the appliance, then turn up the thermostat I get continuous LED "control has 24V power"
Suggestions for anything else I can test?
thanks in advance for any free advice,
Michael
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