Why Is My Heat Pump Blowing Cool Air in Heating Mode?
Heat pumps are a staple of heating and cooling in the temperate climate around Gainesville, FL. However, if you turn on heating mode and your system continues blowing cool air, you have a problem. Discover the common causes of a heat pump blowing cool air and what it means for you.
It’s in Defrost Mode
One of the most common causes of your system blowing cool air is when it switches to defrost mode. This happens when the outside coils drop below freezing, which causes them to ice over and prevents heat transfer.
The system will automatically flip into defrost mode to reverse the refrigerant’s flow and force hot refrigerant into the coil. This cycle should only last about 10 minutes, but you may feel cool air blowing during that time.
Faulty Thermostat
Thermostats are the brain of your heat pump, and various problems may cause cool air to blow. It may not register the air temperature correctly, or it may send an improper signal to activate the reversing valve. A technician should test your thermostat’s function during routine heat pump maintenance to ensure that it’s sending accurate signals.
Reversing Valve Issue
The reversing valve itself may have a problem and need repair. This sits along the refrigerant line and is a fairly straightforward repair for a professional. The good news is that a faulty reversing valve does not necessarily mean you need a new heat pump.
Refrigerant Leak
Your entire heat pump operates through the use of refrigerant to transfer heat. To work properly, it must have a certain amount of refrigerant in the system to build the appropriate pressure.
Low refrigerant indicates a leak somewhere in the system, potentially in a coil, a line, or through the compressor. Leaks need immediate attention to prevent catastrophic damage to the compressor, requiring a system replacement.
Don’t waste time and money hoping your heat pump will magically fix itself. Call to schedule your heat pump repair with one of our NATE-certified experts at Browning Heating & Air Conditioning, LLC.
Image provided by iStock
You May Also Like

Why Does My AC Make My House Stink in Newberry, FL?
When the summer heat and Florida humidity crank up in Newberry, FL, your air conditioner goes into overdrive to keep your home… Continue Reading Why Does My AC Make My House Stink in Newberry, FL?…

Ductless Mini-Splits Offer Versatile Solutions for Indoor Comfort Issues
Does your home have hot spots, stuffy rooms, tricky spaces that never seem to stay cool? Around High Springs, FL, many homes… Continue Reading Ductless Mini-Splits Offer Versatile Solutions for Indoor Comfort Issues…

Signs That Could Indicate You Need an AC Replacement
Living in High Springs, FL, means getting used to long, hot summers. Around here, having a dependable air conditioning system isn’t just… Continue Reading Signs That Could Indicate You Need an AC Replacement…