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My Heat Pump Ices in the Summer

It is never normal to see ice in the summer anywhere on a heat pump or a central air conditioner. This includes:

1. The indoor unit.

2. The outdoor unit.

3. Refrigerant lines.

If you see ice on a heat pump or air conditioner in the summer, there most likely is a problem. Below is a list of possible causes. Items in blue can be addressed or fixed by the homeowner. Those in red usually require a service call.

  • Clogged or blocked air filter

  • Supply and/or Return vents closed

  • Running air conditioners with windows opened

  • Setting thermostat too low

  • Bad indoor fan motor-not running/running too slow

  • Loose, worn, or broken fan belt

  • Bad indoor fan relay

  • Clogged blower wheel

  • Low refrigerant charge

  • Refrigerant restriction

  • Blocked capillary tube

  • Blocked orifice

  • Defective expansion valve

  • Stuck compressor contractor

  • Defective thermostat

  • Dirty or damaged indoor coil

Hope this has been of some assistance, however they are just rough guidelines and not all possible conditions are covered.

Remember:

The company You Choose To Install and Service Your System Will Determine The Degree of Comfort and Satisfaction You Enjoy.


Excerpts of the preceding information has been compiled by Hannabery HVAC, which has graciously permitted us to include them on this web site as a service for all homeowners.

These "Common HVAC Problems" are provided FREE and as a consequence Climatemakers does not assume any liability resulting from any information we provide. In all cases where there is any possibility of injury, consequential damage, direct damage to your equipment or when recommended by the equipment manufacturer, your system should be repaired, inspected or maintained by a qualified technician.

Got a question? Need more information? Have a constructive comment? Click here.

If you find an error on this page I would appreciate it if you would email us or call (757) 600-0422.

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