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Join Date: Mar 2013
Posts: 6

AC

03/12/2013 6:58 AM

indoor unit is suddenly become ice formation why

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#1

Re: AC

03/12/2013 7:03 AM

It is being asked to do too much cooling too fast, and the moisture in the air passing it is condensing and icing onto it. One of the reasons may be that there is a lot of moisture in the air. Another that air flow past the unit is impeded in some way (it certainly will be if it is iced-up).

  • Try cleaning it.
  • Try turning the thermostat up a bit so it doesn't work so hard.
  • Try shutting windows and doors.
  • Try cooling the room more slowly.
  • Try installing a dehumidifier in the room as well.
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#2

Re: AC

03/12/2013 7:09 AM

That's actually quite common. The two most likely causes for that are:

1. Low air flow...fan motor is failing or filter needs replacing.

2. Unit needs a refrigerant recharge.

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