Heat pumps make a lot of sense in Mesa, AZ: able to provide reliable air conditioning in the summer, then switching over to heating mode on those few occasions when the weather starts to get chilly. It saves money and makes the ability to heat your home a lot easier than using an entirely separate system. But what happens when your heat pump won’t switch over from cooling to heating mode? We get calls like that a lot this time of year, when temperatures start to dip, and if you spot the problem, we can be there in a flash to fix it. Here are a few possible reasons why your heat pump won’t switch over.
The Reversing Valve Is Broken
Heat pumps rely on a regular cycle of refrigerant to work, much the way air conditioners do. In cooling mode, a heat pump vents hot outside, then cools the air inside; in heating mode, the flow is reversed and the hot air is released inside instead of outside. But if the reversing valve is broken, it will stay stuck in one mode, which means you’ll need to get it repaired or replaced before the heat pump will work the way it should.
Refrigerant leaks are a common problem with air conditioners and can cause just as much damage with heat pumps as well. Both types of system rely upon specific types of refrigerant in specified amounts to work. When those amounts go down, it can lower the amount of heat or cooling energy the unit produces. Simply recharging the refrigerant won’t work. You need to find the source of the leak and seal it, then recharge the refrigerant: something only a trained and licensed technician should attempt.
For quality heat pump repairs, call on John’s Refrigeration today!