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:
1. furnace sat for almost a year, installed new in 1998
2. I lit the furnace about 2 weeks ago when service was turned on
3. electrician (non-licensed) has been rewiring the house, replacing old
"tube and knob" wiring.
4. furnace and thermostat ran fine for 2 weeks
5 furnace no longer lights or heats.
6. furnace circuit to box was replaced with new wire to 20amp breaker
What I've done:
1. replaced thermostat
2. checked continuity of thermostat wires (OK)
3. replaced HSI because sanding on old one cracked it (I was warned)
4. component test jumper wire between COM and TEST shows continuous LED
according to front panel this means: "Control has 24V power"
5. the 3amp fuse link is still good
6. 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,
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