Our Approach to Heat Pump Repair
When your heat pump stops working or is not performing like it should, Aces Highlands provides fast, accurate diagnostics and honest repairs. We fix the actual problem — not just the symptoms.
Heat pump issues can range from simple fixes like a dirty filter or tripped breaker to more complex problems like refrigerant leaks, compressor failures, or control board malfunctions. Our technicians diagnose accurately the first time so you get the right repair without paying for unnecessary parts.
We service all major heat pump brands including GE, Hitachi, Mitsubishi, Daikin, Fujitsu, and LG. We carry common replacement parts to complete most repairs in a single visit. Regular heat pump maintenance can help prevent many common repair issues before they start.
If your heat pump is beyond repair or the cost of fixing it does not make sense, we will tell you honestly and help you evaluate replacement options.
Common Heat Pump Problems in Maine Homes
The calls we see most: a unit that is icing over and never defrosting (often a defrost sensor, board, or refrigerant issue rather than "normal winter"), indoor heads blowing lukewarm air in heating mode, error codes flashing on the display, water dripping from an indoor unit (a clogged condensate line), outdoor units that rattle or grind, and systems that simply will not turn on after a power blip.
Maine adds its own failure modes. Outdoor coils take a beating from snow load, ice fall from roofs, and coastal salt air; mice love the warmth of control boards; and units mounted too low get buried in a storm and starve for airflow. Our technicians see these patterns every week, which is why our diagnosis starts with the likely culprits instead of a parts-swapping expedition billed to you by the hour.
Should You Repair or Replace Your Heat Pump?
Honest math: if your system is under 10 years old and the fix is a sensor, board, motor, or condensate problem, repair is almost always the right call. If it is past 12–15 years, needs a compressor, or has a major leak on an older refrigerant, replacement usually wins once you count efficiency gains and available rebates on a new cold-climate system.
Because Aces Highlands is a local company and our techs are not commissioned, you get that math straight. We have no quota pushing us toward the replacement answer — repairing your unit well is how we earn your water heater call next year.
Local & Independent — Not a Franchise
Aces Highlands is a locally owned Portland, Maine company — not a national franchise. Our technicians are not commissioned salespeople and nobody here is required to upsell you anything. We do the work you called us for, do it right, and earn the next call. That is the whole business model.
More Heat Pumps & Mini-Splits Services
Heat Pump Repair FAQs
Why is my heat pump covered in ice?
Light frost on the outdoor coil is normal — the unit runs periodic defrost cycles to clear it. Solid ice that never clears is not normal, and usually points to a failed defrost sensor or board, low refrigerant, or blocked airflow. Shut the unit off and have it diagnosed before the ice damages the fan or coil.
Why is my heat pump blowing cold air in heat mode?
Check the remote is actually in heat mode and the filters are clean first. If those are fine, the usual causes are low refrigerant from a leak, a failing reversing valve, or a compressor issue — all of which need a technician with gauges to confirm.
How much does heat pump repair cost?
Simple fixes like condensate clogs, sensors, or capacitors are commonly a few hundred dollars. Board replacements and refrigerant leak repairs cost more, and we always quote before we repair, so you can decide with the real number in front of you.
Do you service heat pumps you did not install?
Yes. We repair all major brands — GE, Hitachi, Mitsubishi, Daikin, Fujitsu, LG and others — regardless of who installed the system.
Is it worth repairing a 10-year-old heat pump?
Often yes, if the repair is minor and the system was installed well. Past 12–15 years or facing a compressor or major refrigerant repair, replacement usually makes more financial sense — especially with Efficiency Maine rebates lowering the cost of a new system. We give you both numbers and let you choose.
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Heat Pump Repair Near You
Aces Highlands provides heat pump repair across Greater Portland and Southern Maine. Find your community below.
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