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Old 07-26-2012, 04:29 PM   #1
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Help...My Air Conditioner won't work

We had a bad storm move through the area today and lightening struck close by. Everything (ac appliances) work fine except my dometic brisk-air air conditioner. I checked and reset all circuit brakers. I also replaced a 3 amp fuse on the circuit board inside the air conditioner. Neither the furnace or air will run. Any ideas? It sure gets warm in here. Thanks

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Old 07-26-2012, 04:34 PM   #2
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If you have a 5 button thermostat, you could try a reset.
1. Slide the power switch to off.
2. Push and hold both bottom and top buttons.
3. Slide power switch to on.
4. Release the buttons.

Now try the functions.

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Old 07-27-2012, 07:28 AM   #3
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Sounds like the thermostat rather than the a/c itself. Try a reset. If the procedure above doesn't apply, just remove 12v power from the t-stat for 10 seconds and see what happens.
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Old 07-27-2012, 07:39 AM   #4
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That 3-amp fuse on the control board that you found blown and replaced feeds the 12V power to the Thermostat. So you had some sort of "surg" that occurred. Could have damaged the thermostat....hopefully not. Is it a 4-button thermostat? If yes, then it has a different "reset" than what is mentioned above. I have the 4-button reset procedure if you need it. Rook
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