Top-rated independent heating and cooling across north Georgia and the southern Appalachians
Which Heat Pump Faults Are Worth Fixing
Your heat pump quit, and now you are stuck on the real question: fix it or start over? We repair heat pumps across Alabama, Georgia, Kentucky, North Carolina, South Carolina and Tennessee, and we will tell you plainly which way we would go. Call us and we will diagnose the fault first, because the answer depends on what actually broke.
Call (888) 878-4879- Real people on the phone
- 7 days a week
- Quote in writing before any work
Taking calls until 5:00 PM ET
STM Heating & Air service team · field-reviewed before publishing
Age Matters, But It Is Not The Whole Story
A heat pump that has been running hard through humid summers and ridge-top winters wears differently than one in a shaded valley home. We look at age alongside condition. A unit in its early years with a bad contactor or a failed capacitor is worth repairing without much debate. A unit well past the middle of its life with a compressor problem is a different conversation. We also check how the coils have held up, whether the outdoor cabinet has rusted through at the base, and how the refrigerant lines and crawlspace ductwork look. Age tells us what to expect. The inspection tells us what is true.
The Fault Type Tells Us Most Of What We Need
Some failures are routine. Capacitors, contactors, defrost boards, reversing valve solenoids, fan motors, thermostats and control wiring are all normal repairs on a heat pump that otherwise runs well. Those get fixed and the system goes back to work. Other failures sit at the heart of the machine. A failed compressor, a leaking indoor or outdoor coil, or a refrigerant leak we cannot find and reach changes the math. We do not guess at those. We test, we locate the leak where we can, and we tell you what we found. A repair that gets you through one season without addressing the cause is not a repair we recommend without saying so.
Parts Availability And Matched Equipment
Two practical things decide plenty of these calls. First, can we get the part? Common motors, boards and controls are usually available. Older models and discontinued lines sometimes are not, and waiting weeks in July is not a plan. Second, does the system still match? A heat pump works as a pair, outdoor unit and indoor coil, sized and designed together. If your outdoor unit needs replacing and the indoor coil is original to it, replacing only half often leaves you with a mismatched system that never performs the way either piece was built to. We will say so before you spend anything.
How We Think About It On The Visit
We start with the fault, not the sales pitch. We confirm the symptom, check the thermostat and controls, read pressures and electrical values, and inspect the outdoor unit and the air handler. Then we sort what we found into three buckets: fix it now, fix it now and watch this other thing, or here is why replacement makes more sense. You get the reasoning, not just a verdict. If a repair buys you real time and the rest of the system is sound, we repair it. If we would not spend the money on our own home, we say that out loud and explain what we are seeing.
Honest Cases Where Replacement Wins
A few situations point clearly toward new equipment. A failed compressor in an older unit. A leaking coil on a system that uses a refrigerant that is being phased down. Repeated repairs in consecutive seasons on the same aging unit. A cabinet that has rusted to the point where mounting hardware no longer holds. Or a system that was undersized or badly ducted from the start, where a swap-in never fixes the comfort problem you actually called about. On dual-fuel setups, we also check whether the furnace side and the controls are still healthy before recommending anything. Replacement should solve a problem, not just move it.
Which Heat Pump Faults Are Worth Fixing — fast answers
Is it worth repairing a heat pump that is losing refrigerant?
It depends on where the leak is. A leak at a fitting or service valve is often a straightforward repair. A leak inside a coil on an older unit usually means replacing the coil or the system. We find the leak before advising.
Can I replace just the outdoor unit?
Sometimes, if the indoor coil is compatible and in good shape. Often it is not, and a mismatched pair underperforms and strains both halves. We check the model pairing and the coil condition before quoting either path.
My heat pump runs but the house never gets warm. Is that a repair?
Usually yes. Common causes include a stuck reversing valve, a defrost control fault, low refrigerant charge or auxiliary heat not engaging. Check your filter and thermostat setting first, then call us to test the system.
How it works
- Step 1
Tell us the symptom
Call or fill in the quote form and describe what you hear, smell or feel. Warm air, short cycling, a breaker that keeps tripping. That gives us a head start on the likely cause.
- Step 2
We diagnose on site
A technician checks the thermostat, airflow, electrical connections, refrigerant performance and the outdoor unit. We work the crawlspace and the attic too, because ductwork and drainage cause more trouble than people expect.
- Step 3
You decide, then we fix it
We explain what failed, what it takes to repair it, and what we would watch next season. No work starts until you say go. Most repairs finish the same visit when parts are on the truck.
- A real person answers
- Open 7 days
- Written quote before work starts
Why homeowners call us
- Mixed heating is normal to usHeat pumps, propane furnaces and dual-fuel setups all behave differently in cold weather. We know how a heat pump should sound in the thirties and when the backup heat is doing too much of the work.
- We go under the houseRed clay crawlspaces hide crushed ducts, sweating lines and standing water. Comfort problems often start down there, not at the unit, so we look before we start replacing parts you may not need.
- Plain explanationsYou get told what broke and why, in words that make sense. If a repair is a short-term patch on an aging system, we say that out loud so you can plan instead of guessing.
- One crew, six statesWe serve homeowners across Alabama, Georgia, Kentucky, North Carolina, South Carolina and Tennessee. Same approach in every one: show up, diagnose properly, repair what needs repairing, leave the space clean.
- All major brands, gas & electricOne independent crew for Carrier, Trane, Lennox, Goodman, Rheem and more.
- Straight answersNot worth fixing? We say that out loud, and often it saves you the visit fee.
About this guide
If the safe checks didn't fix it, the fault is real
Report what you saw during the checks and we handle the rest. A minute to book.
- A real person answers
- Open 7 days
- Written quotes
- All major brands
- Gas & electric
Rather not call? Get a free quote →