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Question:

Folllowing power outtage, AC compressor will not come on. Thermostat indicator reads Wait. What do I do?

How long should I wait? Do I turn the system off for a period of time then try again. We have been having electrical storms and a large portion of the grid went out twice. The AC stopped performing after the first power outtage and the wait indicator came on the thermostat. After about 4 hours, I turned the unit back on and it functioned properly, cooling the house. Then the power went out again for several hours. I turned the system off when the power returned and left it off over night, thinking it would come back up in the morning. But, it has since maintained the Wait message. Any advice on how to remedy before calling a tech would be most appreciated.

Answer:

don't think their is much to do . how old is the unit? maybe it caught a power surge the second time the electric went off . this could have fried it . sounds like you've done the right thing with laeving it off untill the next day. Sorry but you just might have to call for a repair
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First thing I would do is to check your breakers at the main panel box for the A/C unit (outside) to make sure that it did not trip. A multi- meter would help to check if it is working properly. The next thing I would do is to check the breaker at the main panel box for your furnace or air handler, make sure that that is operating properly. If it is alright, then check to see if you have what they call a fuse-tron switch (it's a switch with a old style glass screw on fuse, under a plastic or metal box that you flip up). Again, if you had a meter you can check the fuse or you can look at the front threw the glass to check the fuse to see if the wire or flat piece of metal is broken(burned out). If it is, replace it with the same size fuse. Not all furnaces or air handlers have a fuse-tron switch but, most have it. One other thing I can suggest is to check the disconnect box outside next to your condenser. Some have fuses inside (lift the cover and grab and pull the pull block) which can be checked with a multi-meter on olms., If it is not a fuse then you have a solid piece of copper (flat bar) that might have burned apart. I really don't believe it could be this but, you can check that. If this didn't work for you, then I would call in a pro. A technician would have to checkout your electrical wiring and electronics to make sure there are no burned wires on your system. One more thing, turn everything off, even the power to your furnace or air handler, even your t-stat. Wait 10 mins. and turn the power on first and then the t-stat. What you just did was reset all your controls My bet is that it is in the breakers or the fuse-tone. Be carefull and good luck.

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