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Evaporator freezing up - Heating & Cooling

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Found block air flow thru Evaporator

Posted on Jun 26, 2009


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Check to see if coil is clean and also check the return air filters are clean, then check if you low on freon.

Posted on Jun 24, 2009


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The Evaporator freezes and fan down by evaporator does not work

Replace the fan that is not working and then see what happens. If evaporator still freezes up after the replacement then the defrost circuits need attention - i.e. the defrost timer, defrost heater element, defrost thermostat.

Aug 19, 2015 | Refrigerators

1 Answer

Water leaking from the freezer unit.

The drain hole is probably frozen over. When it goes into defrost mode every 10 hours or so, the evaporator heater removes the ice from the evaporator. There is a drain hole under the evaporator with a hose attached that goes down to a pan by the compressor fan where it is evaporated so as to not leak water on the floor. When it freezes over the drain, the water fills the bottom of the freezer until it comes out the door. A common fix to prevent the drain from freezing over is to take a bare copper 14 or 12 gauge wire and put a couple turns around the evaporator heater and stick the other end into the drain. This heats the wire enough to keep water from freezing b over the drain hole.

Dec 09, 2013 | Jenn-Air JFC2089HE French Door...

2 Answers

Why does my ac freeze up

Hello, air conditioners will freeze either due to low airflow.....such as dirty filter, dirty evaporator coil, weak or not running blower motor. Also, a low refrigerant charge can cause the unit to freeze up.

Jul 09, 2012 | Danby Heating & Cooling

1 Answer

My window ac unit keeps cycling off, before it gets to the assigned temperature. Help

What may be at issue is evaporator icing. Some units cycle the compressor, others control the refrigerant to keep the evaporator temp just above freezing. If allowed to continue the evaporator would freeze over and air flow would stop....
Check and see if that is the case...

Jul 20, 2011 | Haier HWR06XC6 Wall/Window Air Conditioner

1 Answer

My Ac window unit keeps freezing up

Either the evaporator (front coil) is clogged with dirt, or you need some refrigerant. If refrigerant is very low, only one corner of the evaporator will get cold. So cold in fact that it will freeze. Then no more air can pass through that section of the evaporator, and the refrigeration will take place a little past that point. That keeps repeating itself until the whole evaporator is froze up. Look at the evaporator when you first turn on the air conditioner and "feel" the evaporator with your hands. The cooling should take place evenly from top to bottom, left to right.

May 09, 2011 | Heating & Cooling

1 Answer

Unit freezing up when running

The most common causes of evaporator freezing are:

dirty or obstruccted evaporator coil,
evaporator fan not working or working too slow.
and the most frecuent is LOW on R-22 Refrigerant. Check lines, look for wet looking spots and greasy/oily stuff on the lines.

Good luck!! Rate this post!!

Aug 10, 2010 | Breezaire WKCE 2200 Wine Cooler

2 Answers

Unit freezes up when nearing 8-12 degree superheat

check to see if your evaporator coil needs cleaning

Apr 29, 2009 | Goodman CLJ30AR32 Air Conditioner

1 Answer

Evaporation tube freezes

shape the hose under frig like a J-trap and it will quit sucking air up it and it wont freeze

Nov 26, 2008 | Whirlpool GD5SHAX Side by Side...

1 Answer

A/c clutch freeze up and later comes on

Have some check the evaporator. If it is dirty no air can pass threw and the evaporator can freeze up. Creating a lot of moisture when warm air coming in hits the evaporator.

Sep 16, 2008 | 1993 Lincoln Town Car

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