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I thank you for your help. I have been in the Navy for 29.8 yrs now as an AME (aircraft climate control, and E-ject seats). I've learned to be safe. Thanks again. Master Chief Bob/KC5GOY

This is weired. Turned T-stat off. Fan on. Fan came on. Went to AC.. droped temp and HP came on blowing cold air. Went to heat and it produced heat. Went to recover and emergency, and both...

Okay, just replaced fuse, turned thermostat to off but fan to on. All works fine, blower was advertised. Turn to heat or AC and fuse pops.

The 29VAC has me thinking the board may be bad or the programmable termostat. Did disconnect all thermostat wire to the low VAC , air handler side and those going to heat pump and read between all...

I don't think it's a short, because the blower tries to start up. I had it in heat put a new fuse in and reset the 220 bkrs. I first saw a smal spark on the sequencer termianl the fuse went....

All wiring looks good. Is the 29.5 volts out of the 24V transformer to high?

The wiring looks good. But was wondering if the 29.5 volts out of the transformer is to high indicating a faulty transformer

Last week my air handler quit working, I found that the 5AMP fuse for the secondary 24volt pwr supply was blown, replace and all worked fine for a week. Now I find it blown again, but each time I...