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Colman centrial air conditioner. A coil freezes up solid restricting all air flow. model # on the ID Plate on the A coil is MCB36CQD. Thanks for your help

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This is the time of year for icing up acoils. Hot days and cool nights have something to do with it, however you might need to clean the acoil. Use a product called NON RINSE FOAMING COOLING COIL CLEANER from a hardware store. You spray it on and its foam pulls **** out of the acoil from deep within and then it goes down the drainpan and serves to open it up as well. Good stuff.

Posted on May 02, 2010

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1 Answer

I have a 10 year old air conditionerthat freezes up and i can't find the drain tube in it.


Freeze up is caused by low freon or restricted air flow over the evaporator coil.

Aug 01, 2014 | Maytag M6Q10F2A Air Conditioner

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Ac problem


Make sure all fan motors are working properly and you are getting plenty of air flow across the evaporator coil. Any restriction of air flow will cause unit to freeze up.

Feb 27, 2012 | Heating & Cooling

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The unit keeps freezing up solid even on energysaver


Change or clean the filter and clean both coils, no air flow or reduced air flow, the coil will freeze. It will also freeze if its set to cold 72 min. setting. Example if your room temp is 72 degrees, than the air will be 52, and the coil temp is 32 degrees, any moisture will freeze. Hope this helps

Jul 02, 2011 | Whirlpool Heating & Cooling

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My air condtioning unit is a GE unfortunately I can't se what btu but ev ry our the coil freezes and its spitting out water. Room size.


clean the coils its freezing up because the air flow is restricted because of dirty coil or filter after cleaning the coils and it still freezing up then it will need some refrigerant aka freon

Aug 19, 2010 | GE Built-In Room Air Heat Cool Air...

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My condensor in the furnace ices up which restricts the airflow. Is this normal. When I shut off the air conditioner the ice melts and causes a minor flood in the furnace. thanks


The indoor coil or "Evaporator Coil" (condenser is the outside coil in air conditioning) should never freeze when an air conditioning system is installed, maintained and serviced properly.
The most common cause of evaporator freezing is a clogged or dirty air filter. Other causes include; a clogged or dirty coil; blower malfunction, filter too restrictive (in which case use a less restrictive type), undersized duct, closed and or covered registers and grills, and collapsed duct.
Another common cause of evaporator icing is loss of refrigerant in which case you should call a professional who can locate and repair the refrigerant leak and recharge your system.

Jun 25, 2010 | Carrier 38CKC036 Air Conditioner

1 Answer

I have a Coleman Central Air Conditioner/Heat Pump. On the cooling mode the coils inside the unit in the basement continue to freeze up causing no air flow. I relpaced the filter thinking it might have...


The most common reason for freezing up is 'air flow,' and since you've already changed your filter - have you checked out the coil (the one that cold air comes from) to see if it's clean? If the filter you changed was really 'bad dirty' then it's a good bet the coil could be dirty also - thus restricting the air flow.

If you're satisfied that the coil is clean - about the only other thing it could be - is 'low on refrigerant,' which of course will take a Service Tech to find the leak, repair it and then re-charge the unit with refrigerant.

One other thing you might think about - are you running the blower motor on 'low speed?' If you are then put it on 'high' and see what happens.

Again, the most likely cause of your problem is air flow or 'low load,' - so I would really look hard for an air flow problem of some sort.

hope this has helped a little

Jun 20, 2010 | Heating & Cooling

2 Answers

The air conditioner use to drip water - it no longer does drip water and continues to freeze over. what could be wrong


It could either be low on refrigerant, a possible dirty coil, or an air flow problem. Rare cases I've seen dirty condensers cause freeze ups.

Jul 10, 2009 | Heating & Cooling

2 Answers

Air conditioner is freezing/icing up inside


needs to be taken apart and clenaned

Jun 21, 2009 | Heating & Cooling

1 Answer

Amana window air conditioner unit keeps freezing.


There are 2 causes for freezing. Lack of air flow or shortage of Freon. After defrosting, start the machine and look for an even pattern of water condensing on all the coils. If the cooling is even and complete on all the coils, see if the coil is so dirty that it restricts the air flow. The fan blade can build up dirt and need to be cleaned, too. If the cooling (condensation) is not complete, you have a Freon problem. Some of it could have leaked out or the metering tubes could be partially pllugged up (on the inside of them).

Jul 22, 2008 | Amana Heating & Cooling

2 Answers

My ac unit


air conditioners freeze up for one of 2 reasons, #1 restricted air flow, is the filter, /orthe evaporator (cool) coil clean?
#2 it is low on freon, causing the coils to be colder than they should be.

Nov 13, 2007 | Heating & Cooling

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