Heat pump tune-ups in Birmingham, AL
A heat pump never really gets an off season, so it needs attention twice a year rather than once. Each visit focuses on the side of the system you are about to depend on.

A heat pump tune-up cleans the outdoor and indoor coils, checks the refrigerant charge, electrical parts and airflow, and tests the mode you are heading into. In fall that means heating, defrost and backup heat. In spring it means cooling, drainage and humidity removal. Zeltman Heating & Air gives you the readings and flags anything worth fixing, with the price first.
Why a heat pump needs two visits a year
An air conditioner rests from October to April. A heat pump does not. It cools through the long Birmingham summer, then switches to heating and runs most winter mornings, sometimes defrosting several times an hour on damp, cold days. That doubles the wear on the compressor, the contactor and the outdoor fan motor.
The spring visit is about cooling. We clean the outdoor coil of the pine and oak pollen that coats everything yellow-green in March and April, clear the condensate drain and check that the system pulls indoor humidity toward the 30 to 50 percent range the EPA suggests.
The fall visit is about heating. We test the reversing valve, force a defrost cycle, measure the heat strips and confirm the thermostat brings on backup heat only when it should. A defrost sensor that fails in November is far easier to replace on a mild afternoon than on a 20 degree night.
Both visits share the same core measurements, so we can compare readings from season to season. A capacitor that drifts lower each visit, or a charge that slowly falls, tells us something is changing before it becomes a breakdown. If you would rather not track the dates yourself, an HVAC maintenance plan puts both visits on the calendar.

What a heat pump tune-up covers
- Outdoor coil cleaning and fin straightening
- Refrigerant pressures, superheat and subcooling
- Capacitor, contactor and compressor amp readings
- Reversing valve shift and a forced defrost test
- Heat strip amp draw and sequencer staging
- Indoor coil, blower wheel and filter condition
- Condensate drain, trap and float switch
- Thermostat settings for heat pump and auxiliary heat
What regular heat pump tune-ups prevent
Midwinter defrost failures
Testing the defrost board and sensor in fall catches the parts most likely to leave you with an iced-over unit in January.
Backup heat running up the bill
A thermostat or wiring fault can bring on the strips too often. We catch that before a winter of high Alabama Power bills.
Capacitor and contactor failures
These parts work in both seasons, and a weak reading is cheaper to deal with on a tune-up than during a breakdown.
Pollen-choked coils
A coated outdoor coil raises head pressure and power use. Spring cleaning restores the airflow the system needs for summer.
Overflowing drain pans
Algae builds in drain lines through the humid months, and a clear line keeps water out of the attic and off the ceilings.
Slow refrigerant loss
Comparing charge readings visit after visit reveals a small leak early, while it is still a simple repair.
How a heat pump tune-up visit goes
We book the right season
Spring visits run March through May. Fall visits run September through November, ahead of the first cold snap.
We start with your notes
Tell us about rooms that run warm, odd noises or bills that jumped. The technician looks at those first.
We clean and measure
Coils, drain, electrical parts, refrigerant charge and airflow are all cleaned or tested, with every reading recorded.
We test the coming season
In fall we run heating, defrost and backup heat. In spring we run cooling and check how well it removes humidity.
You get the readings and any quotes
We walk you through the results. If something needs repair, we explain why and give you the price before doing it.
What a heat pump tune-up costs in Birmingham
$124 to $226
A single, accessible heat pump with a reasonably clean coil sits near the low end. Heavily soiled coils, attic air handlers and homes with two systems cost more. Parts such as a capacitor or a defrost sensor are extra and priced before they are replaced.
Ask for a price (659) 777-4129What moves the number
- Number of systems
- Two-story homes in Hoover, Trussville and Chelsea often have two heat pumps, and each one gets its own full visit.
- Coil condition
- A coil packed with pollen, cottonwood fluff or dryer lint takes more time and more cleaner to restore.
- Air handler location
- A unit in a hot attic or a tight crawlspace takes longer to inspect than one in a hall closet.
- Drain line condition
- A drain that is already clogged with algae needs flushing and sometimes new fittings.
- Equipment type
- Variable-speed heat pumps have more sensors and controls to check than a single-stage unit, which adds time.
Heat pump tune-up notes for Birmingham homes
Many homes in Helena, Moody and the newer parts of Trussville rely on heat pumps as their only heat, so the fall visit matters most there. Some East Pinson Valley homes pair a heat pump with a gas furnace. On those, we check that the switchover between them is set sensibly.
Spring visits fill up once the pollen arrives, so booking in early March helps. Outdoor units on terraced or sloped lots, common in Redmont Park and Vestavia Hills, collect leaves and mulch against the coil. We clear that as part of the visit. Our base on 15th Avenue North keeps Irondale and the eastern neighborhoods close.
Areas we cover most often
We repair and replace equipment from these manufacturers, plus most other makes.
Questions about heat pump tune-up in Birmingham
Twice a year is the standard for heat pumps, once in spring before cooling season and once in fall before heating season. Because the system runs year round, a single annual visit leaves one season untested and one set of parts unchecked.
Both visits clean the coils and check the charge, electrical parts and airflow. The spring visit adds cooling tests, drain service and humidity checks. The fall visit adds a reversing valve test, a forced defrost and backup heat measurements, so each season starts with the parts it relies on.
You can gently rinse the outdoor coil with a garden hose after shutting off power at the disconnect, and keep leaves, mulch and shrubs a couple of feet back. Avoid pressure washers and harsh chemicals. Leave refrigerant, electrical and defrost checks for the tune-up visit.
Yes, on the fall visit. We measure the amp draw on each heat strip, test the sequencer or relays and confirm the thermostat stages backup heat correctly. Strips that never come on, or come on too often, both cost you, either in comfort or on the bill.
Plan on roughly 60 to 90 minutes per heat pump. Very dirty coils, an attic air handler or a second system add time. If we find something that needs a longer repair, we tell you before starting it.
It can, mainly by catching problems that make the backup strips run more than they should, such as a failing defrost sensor, a low charge or a thermostat set up for the wrong equipment. A clean coil and a correct charge also help the heat pump carry more of the load itself.
Related services and reading
- HVAC Maintenance PlanSpring and fall visits on a schedule, so nothing gets skipped.
- Heat Pump RepairStuck in defrost, iced over, cold air in heat mode or a reversing valve that will not switch.
- Condensate Drain Line RepairClogged drains, tripped float switches, full pans and water on the ceiling.
- AC Tune-UpSpring service that cleans, measures and tightens before the first heat wave.
- Pollen season and your HVAC filter: MERV ratings explainedAir quality guide
- Thermostat settings for Alabama summers and wintersComfort guide
Need heat pump tune-up in Birmingham?
We answer 24/7. Tell us what the system is doing and we will tell you what happens next.