Question about Mitsubishi Mr. Slim MXZ30TN Air Conditioner

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We have just had the MSZ-GE12NA installed and it was working at first (installed on Thursday). Yesterday the outside unit froze up, after dethawing and turning back on again, the cold side of the unit had 45 degrees, the hot side was at 83 degrees, but all 4 lines going to the inside units were registering 72 degrees. When the inside units are off, it the inside unit cools down to 35-40 degrees but when you turn them on, the air coming out is now only 72-73 degrees.

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Doesnt sound like the compressor is running it may be a bad capcitor are the coils clean and do you change the filter often as you should

Posted on Sep 11, 2010


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Sounds like if your ice maker is still working, you're having an issue with your filter maybe freezing. Check to make sure your water filter isn't froze. What you're talking about with the overflow is a coincidence, but unless the internal wiring for the unit inside of the dispenser got damaged, i doubt thats the reason why. It's either a frozen filter or bad water valve. Try dethawing the filter or taking it out and seeing how much pressure there is built up in it. There's also a water reservoir in the back of this unit that may be froze too.

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Remove the rear panel in the freezer and see if the evaporator coils are frozen over.
If so dethaw coils with a hair dryer.
Reassemble freezer and set controls to the normal position.

Although you replaced the defrost timer if the coils were frozen over in the freezer no air can transfer to the ref. section from the freezer.

If you do not want to dethaw the coils unplug the ref. for 1-2 days and leave the doors open .The coils will dethaw by then.

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