We service both air-source and ductless heat pump systems.
Auxiliary heat strip issues are checked alongside the heat pump itself.
If you're dealing with a system stuck blowing cold air in heating mode, an outdoor unit that's iced over and won't run its defrost cycle, or a system that switches modes but never actually reaches set temperature, you already know a heat pump that seems to be 'not heating' is often actually a reversing valve or defrost cycle problem, which a technician trained mainly on standard AC systems can easily misdiagnose.

Most heat pump repair problems give some warning before they turn into a system stuck blowing cold air in heating mode, an outdoor unit that's iced over and won't run its defrost cycle, or a system that switches modes but never actually reaches set temperature — catching it early usually means a shorter, cheaper fix.
AAA Pro HVAC built its heat pump repair process around one idea: diagnose first, quote honestly, fix it right.
We're licensed, insured, and staffed with techs who've spent years specifically on heat pump repair, not general handyman work with an HVAC certificate bolted on.

Our techs are specifically trained on reversing valves, defrost boards, and auxiliary heat systems, not just general AC repair logic.
Heat pumps run in both summer and winter, so we treat heat pump failures as urgent regardless of season.
Auxiliary heat strip diagnostics are included in the same visit when relevant.
We test reversing valve solenoids, defrost thermostats, and control board timing directly.
Every job starts with a real diagnosis, not a guess — here's the full scope of what our heat pump repair technicians handle across Champlin, MN.
A stuck reversing valve is the single most common reason a heat pump gets stuck in one mode. Techs handling reversing valve diagnosis & repair carry the specific parts and tools this job calls for, not a generic kit.
We verify the defrost cycle actually triggers under test conditions. Techs handling defrost cycle & control board repair carry the specific parts and tools this job calls for, not a generic kit.
We test heat strip elements and the relay controlling them separately. This is one of the most requested heat pump repair calls we get across Champlin, MN.
Heat pump refrigerant charging follows different specs than standard AC systems, especially across heating and cooling modes. This is one of the most requested heat pump repair calls we get across Champlin, MN.
We distinguish between the two before recommending any repair. This is one of the most requested heat pump repair calls we get across Champlin, MN.
Ductless mini-split heat pumps have their own fault-code language separate from central systems. This is one of the most requested heat pump repair calls we get across Champlin, MN.

That detail determines which specialized tools ride along.
Heat pump-trained technicians arrive with reversing valve and defrost diagnostic equipment already loaded.
Flat-rate pricing follows the confirmed diagnosis.
Most reversing valve and defrost board repairs finish same-visit with parts carried on the truck.

Previous company just topped off refrigerant twice — this tech found the stuck reversing valve in ten minutes.
Outdoor unit was constantly covered in ice and I thought that meant it was broken.
They tested the relay separately from the strips themselves and found the actual fault fast.
Tech recognized it immediately as a defrost-related fault specific to that brand.

Often a stuck reversing valve, which controls whether the system is in heating or cooling mode.
If the unit stays iced for more than an hour, that's worth a service call.
A technician needs specific training on these components to diagnose heat pump issues accurately.
If auxiliary heat isn't kicking in properly, that's a specific fault we can test for.
These systems have their own fault-code patterns that our techs are trained to read.
No-heat heat pump calls get year-round priority dispatch across Champlin, MN.

Whether you're in the heart of Champlin or one of the surrounding communities, dispatch routes the closest available technician.
☎ Call +1-866-805-8548 for Champlin Service