air conditioner

I 've got a small window unit in a bedroom that keeps icing up if you try to run it on anything but high. I'll turn it down at night then it will wake me up at with some funny noises and I take the front cover off and it;s covered with ice, and there's no cool air coming out because the cooling radiator is blocked with ice. Does anybody have a suggestion?
-- Rob in the U.S.A. no matter where you go there you are
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Hi,
A copy...
**Air conditioners are not meant to be operated if the inside or outside air temperature is below 70F. If this happens, ice will form on the evaporator coil and will restrict air flow possibly burning out the fan motor. If the temperature is suppose to drop during the night, set to thermostat to a warmer setting to allow the compressor to cycle off when necessary to avoid icing up.**
Restricted air flow ( drapes, ect ) dirty unit ( needs steam cleaning ) can also produce icing on the evaporator coils.
Try turning the cold control down a but at night as well than just the fan speed.
jeff.
Appliance Repair Aid http://www.applianceaid.com /
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Rob Mcgee wrote:

thermostat sticking and that might be one of many things that is going wrong and its freezing over...
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1.) Restricted air-flow.......(dirty filter or coil) 2.) Bad thermostat.......(not cycling compressor on/off) 3.) Last is the refrigerate charge........(leaking and low)
Your welcome. :-)
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Aaaaaaaaaaaaaw.............
Low refrigerate charge can and will freeze a coil there sir.
If, you haven't seen one....you're not in the trade!
-- kjpro _-~-_>_-~-_>_-~-_>_-~-_>_-~-_>_-~-_>_-~-_>_-~-_>_-~-_>_-~-_>_-~-_>
( kjpro @ starband . net ) remove spaces to e-mail
Want it done yesterday? Or done right today, to save money tomorrow!!
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Bull...a low charge will freeze that sucker solid....and completely...havent been doing this long have you?

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thank you for all your suggestions It gives me some places to start.
-- Rob in the U.S.A. no matter where you go there you are

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Rob Mcgee wrote

Does the only icing only happen at night or during the day too?
If only at night, this quote from my site's Helpful Tips section likely applies:
- Air conditioners are not meant to be operated if the inside *or* outside air temperature is below 70F. If this happens, ice will form on the evaporator coil and will restrict air flow possibly burning out the fan motor. If the temperature is suppose to drop during the night, set to thermostat to a warmer setting to allow the compressor to cycle off when necessary to avoid icing up. -
BTW. If the cause was a refrigerant problem like someone else suggested, the evaporator (cooling) coil should only *partailly* frost or ice.
JMO
Dan O. - Appliance411.com http://ng.Appliance411.com/?ref411=air+conditioner
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Hi Dan, hope you are having a nice day
On 04-Aug-03 At About 05:03:31, Dan O. wrote to All Subject: Re: air conditioner
DO> BTW. If the cause was a refrigerant problem like someone else DO> suggested, the evaporator (cooling) coil should only *partailly* DO> frost or ice.
Not quite correct Dan. the whole coil can freeze due to a low charge.
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Hi Jim, hope you are having a nice day
On 03-Aug-03 At About 04:42:00, Jim Caldwell wrote to All Subject: Re: air conditioner
JC> One of two possibilities come to mind. Low system charge is one. See JC> if it putting out air at around 50 deg or so on a hot summer day.
Please don't spread false info. an RAC ( room air conditioner ) should have a delta T of 18 to 25 degrees. so if the air going in is 75 the air coming out should be 18 to 25 degrees colder. in this case 60 to 50 degrees. it is not a set amount as you state here.
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Hi Kent, hope you are having a nice day
On 03-Aug-03 At About 07:57:17, Kent wrote to All Subject: Re: air conditioner
K> From: snipped-for-privacy@yahoo.com (Kent)
K> a low charge won't ice thow WHOLE coil.
Yes it will.
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