Question about Whirlpool ACQ158XP Wall/Window Air Conditioner

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Thru the wall ac unit

The unit is making a whining, clattering sound, like something is loose. Could it be the fan? Could it be froze up? It almost sounds like the fan`s off- balance, sometimes it starts after a bit of whining and it sounds ok, then other times it sounds horrible, maybe like it`s stuck. Help, anyone? Thanks! Also, the mfg date is 2004, so it`s not that old.

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Re: Thru the wall ac unit

Sounds like the fan shroud on the hot side has come loose, or something is rattling around inside. Looking through the exterior vents may reveal the trouble, but the unit will have to come out & have the cover removed for repair. You can try lifting the outside corners one at a time while the unit is running & see if the noise stops. If so, a shim wedged under that corner will hold you for the season.

Posted on Jul 15, 2007

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Dear cmr 1,
As you have mentioned that it look like the fan hitting something, this is possible. This kind of problem can occur while transporting the machine. Some times the fan becomes loose because of viberation. So the fan has to be realign. Regarding the tilt it is okay to have 1/4 inch tilt backwards. Since the air-conditioner is brand new it is advisable to contact the company.

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