Why does my air conditioner blow cold air in Phoenix during the winter?

We have many customers in Phoenix, Chandler, Ahwatukee, Gilbert, and Mesa that call during the winter because their Air Conditioning / Heat Pump unit or system blows cold air when the need warm air.

We also get calls from folks in Phoenix, Chandler, Ahwatukee, Gilbert, and Mesa that ask, “Why do I hear wierd noises coming from my air conditioning system / unit during cold weather?”

Why does my air conditioner blow cold air in Phoenix during the winter?

The other common question our customers in Phoenix, Chandler, Ahwatukee, Gilbert, and Mesa ask, is “Why do I see fluid leaking from my air conditioner and why is my air conditioner smoking?’

Well the simple answer to all of these questions is “Your heat pump system is going into defrost mode.”

All heat pumps have the ability to melt any frost that may accumulate on the outdoor coil. (condenser coil) The way the heat pump removes the ice or frost is by switching a reversing valve which puts the system into air conditioning mode temporarily. Just long enough to melt the frost. During a defrost cycle the following things happen. The ice melts and drains to the ground around the outdoor coil which explains the fluid people witness. There is usually some steam rising from this water. It looks like smoke. When the reversing valve switchs from heating to defrost, it often makes noises that seem concerning to homeowers. And, the air temperature coming out of the vents in the house is cold.

In the valley of the sun the temperatures are rarely low enough for frost to accumulate so many people are surprised when they witness a defrost cycle. Most of the time it is during the coldest part of the coldest nights in the Phoenix area.

Please call Air and Water Factor Cooling & Heating if you have any questions about your Air Conditioning system in Phoenix, Chandler, Ahwatukee, Gilbert, and Mesa. We can help you determine if your system is acting normally or if you should schedule a service call.

Air & Water Factor Cooling and Heating services the following brands: Trane Air Conditioning, American Standard Air Conditioning, Carrier Air Conditioning, Bryant Air Conditioning, Lennox Air Conditioning, Ruud Air Conditioning, Rheem Air Conditioning, Day & Night Air Conditioning, Maytag Air Conditioning