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Carrier heat pump freezing up - Heating & Cooling

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  • lawrencedoll May 11, 2010

    no, its the condenser



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Check refrigerant pressures, it's probably low on refrigerant. When you say "freezing up" I am assuming you are referring to the Evaporator/Air Handler?

Posted on Apr 30, 2008


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When should aux heat come on? honeywell th3210d carrier heat pump.

It should come on when heat pump cannot heat space up enough .If room is 68 and set for 70 degrees auxiliary heat will not come on

Jan 04, 2018 | Carrier Heating & Cooling

1 Answer

Need heat pump wiring diagram for carrier 38yka030300

All Carrier has on this is installation instructions & field wiring. If your heat pump is freezing up, then check your defrost board to see if the timing jumper for checking the freezestat is set to 30,60, or 90 minutes. If it is set to 90, then set it either to 30 or 60 for the board to check the freezestat more often to go into defrost. Then again, the system could be a little low on refrigerant.

Dec 19, 2013 | Refrigerators

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Ice on coils of heat pump not cooling

Which coil?, indoor or out? Indoor coils freeze due to clogged filters, low freon, blower motor not working. Outdoor coil freezing could mean, in rare cases in cooling mode, reversing valve not shifting.

Oct 02, 2013 | Carrier 52CQ-312-4 Comfort Series Heat...

1 Answer

It keeps freezing over (even at the low mode on cold and the temperature is set all the way to 80) the whole system freezes any help will be great thanks guys

The unit most likely has a refrigerant leak. This will cause the system freeze up you describe.
The leak will have to be found, repaired, and the system recharged. Depending on where the leak is the cost for total repair could be more expensive than you want to spend. Compare with cost of a new unit.
Hope this helps.

Sep 13, 2011 | Carrier 52CQ-212---4 Comfort Series Heat...

1 Answer

I have Carrier Heat pump model # 25HBA. It was installed 3 years ago. I have had problems with it several times. This time, it is freezing up on the outside unit. My electric bills have sky rocketed. What...

The cooling coils are freezing because the gas (coolant) in the system may need replenishing or a small leak in the system. Something you can check yourself, is whether or not the foam insulation on the refrigerant tubing coming out of the unit is still intact. If not, that tubing is probably freezing too.
The other possibilities will need to be check by a qualified service technician.

Feb 10, 2011 | Carrier Heating & Cooling

1 Answer

My carrier heat pump has frosting on the outside on it's coils. I know that it's cold outside but is that normal?

Yes it is normal especially with high humidity. The moisture freezes on the coils just like on the evaporator coils in a freezer. The heat pump will defrost itself by shutting off the fan outside and reverse the flow of refrigerant to melt the ice when it build up then switch back to normal heat. That's why at times you may feel cold air coming out of the vents in the house. The outside coils are defrosting.

Dec 16, 2010 | Heating & Cooling

2 Answers

Why does my AC keep freezing (Carrier FB4ANF036). I have replaced the blower motor less than a month ago due to the same problem. Just last night we had a lightening storm and shortly after that the AC...

if your system is a heat pump you can switch to heat and see if coil outside gets cold while indoor blows warm air - then switch back to a/c - both coils should not be cold at the same time - low freon pressure / dirty coil / dirty filter / low air flow causes freezing

Sep 22, 2009 | Carrier Heating & Cooling

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