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I live in NC so the temperature rarely goes below freezing and if it does it's only for a few hours. The hvac fan unit outside of my house is freezing up. This is the unit that everyone has outside of their house, nothing special. it is used for both central A/C and electric heat. What is causing this? / Is this a problem I need to be concerned about? I have never had this problem until recently. The last time it happened it did end up thawing itself out.

Thanks in advance for the help.

2007-01-09 06:49:04 · 9 answers · asked by AirDevil 4 in Home & Garden Maintenance & Repairs

9 answers

You have a heat pump and it is part of the equipment design and planned operation for it to freeze up. That is why it has a defrost cycle. You will notice at times it is defrostion because you will notice the ice there and then sometime later it will be gone. There is no problem here. It is wise to have a local a/c and heat pro to check this unit out each year. They can e expensive to repair if you let maintenance take a back seat.

Hey, Jude. Get Daddy to teach you about heat pumps. Read again. The outside, OUTSIDE, unit is freezing up.

2007-01-09 06:55:33 · answer #1 · answered by Jekyl and Hyde 2 · 2 0

Are you sure you have electrical heat? Or is your HVAC a "heat-pump". A heat pump just reverses its operation in the winter i.e. putting heat into your house instead of removing heat from the house. In that case Your HVAC is just "doing its thing" and is perfectly normal.

2007-01-09 07:01:52 · answer #2 · answered by HeyDude 3 · 0 0

Either:

1. You've got a dirty evaporator coil
2. Your unit is low on freon
3. There is a restriction in the system

Most of the time, the problem is that the unit needs freon. Just be aware that freon should never have to be readded unless there is a leak in the system. So if this is the problem, make sure to have the leak fixed, otherwise the same thing will happen again. I hope this helps

2007-01-09 06:54:50 · answer #3 · answered by jude7265 4 · 1 2

this is normal for a heat pump....it happens most often when its 34 degrees and drizzling rain. as long as the condenser isn't a big ball of ice, theres nothing to worry about. if it is a big ball of ice, you need to have the unit charged.

Possum

2007-01-09 12:37:36 · answer #4 · answered by hillbilly named Possum 5 · 1 0

you must have a heat pump and the defrost control isnt removeing the frost before it turns to ice if heavy frost comes and goes it is working ok

2007-01-09 17:32:19 · answer #5 · answered by robert c 3 · 1 0

I agree with the other knowledgable ones who have answered. You have a heat pump, and this is normal.

2007-01-09 13:03:19 · answer #6 · answered by jollygreen60 3 · 0 0

Your A/C has a refrigerent leak which needs to be repaired and the system re-charged up

2007-01-09 06:59:58 · answer #7 · answered by aussie 6 · 0 2

Water is getting in there. Put a piece plywood on top to make a roof over it.

2007-01-09 06:58:35 · answer #8 · answered by ButwhatdoIno? 6 · 0 4

Gas leak'n

2007-01-09 10:40:54 · answer #9 · answered by Specialist Ed :Þ 3 · 0 2

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