nealtw
Contractor retired
The test in post 56 can be done with a hand full of fuses and then you would now witch wire or circuit that is the problem.
Something is wired wrong. Jumerping W & Y should not do anything, especially not turn on the blower fan.
Also, you should not be getting voltage when checking R to W & Y.
There should be a wiring diagram on the back of the removable door panels.
If the thermostat wires were disconnected from the control board when he jumered it out for heat, then we have eliminated (for now) the thermostat and thermostat wires.
Was this the case when R to W was sparking?
Although I'm thinking more along the lines that the control board is wired in wrong.
Can we see pics of the back side of the cover panels and wires to control board?
Something is wired wrong. Jumerping W & Y should not do anything, especially not turn on the blower fan.
Also, you should not be getting voltage when checking R to W & Y.
There should be a wiring diagram on the back of the removable door panels.
yeah, i set the video to where only i can see it. i'll change my settings to public so you can click on the link and it should show up. let me know if you can see it or not. and neal, you have been great through all of this!
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