Question about Mitsubishi Mr. Slim MXZ30TN Air Conditioner

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Had a power outage last night and 2 of our wall units stop working. i reset the breakers but all that comes out is hot air.

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Check the outside compressor to see if it needs to be reset

Posted on Sep 09, 2010

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GE Front Load Washer has no power after a power outage. Main breaker has been reset and we have unplugged the unit from the wall. Door is still locked and no lights come on at all.


there could be a fuse in the control board that you can look at
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this surge generally manages to fry the power/control board
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Check for fan operation by turning the fan control at the thermostat to "on". If the fan blows, it works. If not, check a circuit breaker or fuse.

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After a power outage, my wall a/c unit will not power on. We have checked the breakers and reset button. The unit blinks the temp that it was set on when the outage occurred, but will not operate.


Possible that the processor has hung and so you need to remove power for some time to help it reset. If this wont solve then remove the program controller unit and check the +5 on the processor. Check the circuits and see if there is any fault on the power supply .

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Transformer is out. There is a 24 volt tranformer that controls power to thermostat...which controls everything

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1 Answer

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