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Condensor freezing up, blower motor does not run. Carrier FK4 series. Outside unit runs OK. Suspect blower motor or maybe defrost board???

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Either blower motor or control board most likely

Posted on Aug 12, 2008

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Air conditioning condensor on side of house not working


sounds like you need to check your run cap it is silver in the outside unit and it runs the compressor and fan motor. Check on the capacitor what size it is and replace it for example 45+5 uf.

Sep 07, 2014 | Carrier Air Conditioners

2 Answers

Our house is hot! The ac unit outside comes on and freezes up, and the blower is not coming on. We have had the inside thermostat changed and freon added and now a new capasitor but no luck.....HLEp


Man, it sounds like you have a heat pump with a bad defrost board or reversing valve. I assume your description of the unit outside freezing up is the condenser and the blower you refer to is the condenser fan motor. Or, is it the big copper line to the compressor that is freezing up? If so, have someone stand by the inside blower and listen for a click as you move the thermostat fan switch from auto to on a couple of times., Make sure at the time you are testing that the thermostat is in the off position. Those 2 switches operate separately. If you hear those clicks during the test you probably have a bad blower motor if there are are no clicks you may have a bad blower relay or board. Hope this helps good luck.

Aug 17, 2013 | Carrier XHB123D X/Y Series Heat/Cool Air...

1 Answer

Window A/c 10 or 15 days is good working\r\nbefore !0 or 15 days ago all Eveporater and section line freeze fan moter good praper work melt the freeze and A/C on A/C giving good cooling what is problem


Hello
You may try cleaning the evaporator filter,Also cleaning the outside coil or condensor,Simple green works good for cleaning coils and a garden hose.

Also cleaning the evaporator may help.
When unit is running properly the evaporator should feel cool and wet from top to bottom.
Last,the unit could be low on freon.

Jun 10, 2010 | Carrier XHB123D X/Y Series Heat/Cool Air...

1 Answer

My heat pump is frozen up today and it is 60 degrees outside and I have my heat set to 66 degrees. Is this normal?


You post is not clear as to where the freeze-up is occurring. I'm going to assume the outdoor unit is frozen up.
Heat Pumps don't generally freeze up at 60 degrees. If the ice around the unit has an uneven pattern (for example a thick spot around the center or at the very bottom) could indicate a low refrigerant charge. If the ice is even throughout, it may be one of the following:
*Sticking Contactor*.....turn the system off at your thermostat and check to make sure the unit outside shut off. If it doesn't turn off, it is likely to be the contactor.
*Failed Defrost Thermostat*.....if the defrost thermostat fails "open", the system will never go into defrost.
*Failed Defrost Control Board*......this could also prevent the system from going into defrost
*Failed Reversing Valve*........put your system in COOL mode and check to see if it will blow cold air inside approx 16 - 22 degF lower than room temperature.
*Failed/Failing Condensor Fan Motor*.......ensure the condenser fan motor is running during heat and cool modes. The condensor fan motor will not run in OFF/Satisfied Mode or in Defrost Mode.
I hope this helps. Good Luck! :-)

Mar 05, 2010 | Air Conditioners

2 Answers

Is it normal for fan on outside unit to be on while on heat mode


Yes, it is normal with a heatpump, you run the outside unit in cooling and heating.
It is also normal when the outside unit goes into defrost for the outdoor fan to shut off during the defrost mode and to see steam coming out of the outside unit, while it's melting the frost or ice, then the fan will come back on.

Jan 06, 2010 | Carrier XHB123D X/Y Series Heat/Cool Air...

1 Answer

The outside unit runs but the inside doesn't blow


COUL BE A FAULTY BLOWER RELAY BOARD OR THE MOTOR COULD BE GETTING HOT AND SHUTTING OFF ON OVERLOAD. CALL A CONTRACTOR

Jun 16, 2009 | Goodman CLJ36AR42 Air Conditioner

3 Answers

3 amp fuse blows on a carrier 58mcb furnace board


Hi!!! Does your ac unit work fine?If not check your low voltage problem..You have a low voltage problem check the wire going out to your condensor make sure that they are not touching..Good luck..Check low voltage wires..short in progress..

Jan 04, 2009 | Carrier 52CQ-312-4 Comfort Series Heat...

1 Answer

Inside fan wont run


Is there a Doctor in the House? Either --OR a bad c,b. or the bearings going out on the motor, running hot and tripping out ,cooling down and restarting ...........Thank-you-very-much!

Jul 30, 2008 | Carrier 38BRC048 Air Conditioner

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