Updated 2026-09-30
Heat pump repair in New Hampshire covers a machine that is asked to heat in January and cool in July. When it fails, say which mode failed when you call (603) 420-0791, and give your ZIP code. An independent contractor quotes the repair after diagnosing the unit. Confirm license and insurance. This site does not stock parts and does not guarantee the repair.
A heat pump that blows cool air in winter may be in a normal defrost, or it may have a failed reversing valve, a sensor, a board, or a refrigerant problem. Defrost should end. If the outdoor unit ices into a solid block and stays that way, shut it down and call. Backup heat, if you have it, should be carrying the house. If you do not have backup, say that when you call so the contractor knows the visit is urgent. A heat pump that cools poorly in summer fails for many of the same reasons as a central air conditioner: airflow, capacitor, fan motor, charge, and coil condition. Tell the contractor about both seasons if both have been weak.
Defrost, snow, and drains
Outdoor units swallow snow and then melt it during defrost. The meltwater has to drain away. A unit sitting in a bowl of ice will not defrost correctly. That is sometimes a repair and sometimes an installation problem. Indoor heads on ductless systems have their own filters and condensate pumps. A pump that fails in cooling season leaks down the wall. In heating season the same head can ice internally if airflow is blocked by a filter nobody cleaned.
Parts and refrigerants
Boards and inverter components on late-model heat pumps are not the same parts as a basic air conditioner. Some repairs require the manufacturer's part and a technician who has the diagnostic tool. Ask whether the quote is for a diagnosis only, or for diagnosis plus the repair. Ask what happens if the part is weeks out. Refrigerant must match the nameplate. Do not accept a top-off as the whole repair if the system has a leak.
Typical cost factors
The part, the refrigerant, access in snow, and whether the system is ducted or ductless change the quote. This page does not print a dollar range. We cannot cite a New Hampshire price list that covers both a failed sensor and a failed compressor. If the compressor or the outdoor unit is the failure on an older system, ask for a replacement comparison. Use when to repair or replace and winter performance as background, not as a decision the website makes for you.
The contractor quotes the price after they assess the job. You confirm license and insurance before work starts. People in photos are actors or models.
What to tell the contractor about the last cold snap
Heat pump failures often show up on the first morning below the temperature where the unit was actually sized. Tell the contractor the outdoor temperature when it failed, whether backup heat came on, and whether the outdoor unit was a block of ice or merely frosted. Those are different faults. A unit that was buried in a snowdrift is sometimes an installation problem wearing a repair invoice. Look at the stand before you approve a board.
If the system is under a manufacturer warranty, have the paperwork out. Some repairs are parts-only, with labor still billed. Ask. If the installing contractor is out of business, warranty parts can be harder, not free. This referral line does not look up warranty status for you. The contractor you hire can, if you give them the serial number. Have it ready and the visit is shorter.
Have the outdoor temperature and the thermostat mode written down from the failure, not remembered a week later. Heat pump controls are sensitive to whether the system was in heat, cool, or emergency heat. If a storm knocked out power, say whether the failure started after the power returned. Boards and float switches both show up after outages. If the unit is ductless, say which head misbehaved and whether the others were fine. A single dead head can be a fan or a communication fault. All heads dead usually points at the outdoor unit or the power feeding it. That distinction is the difference between a small repair and a large one, and you can observe it before the truck arrives.
Guides
Cities
Same service, with the housing and fuel notes for that city. Heat pump repair in Manchester · Heat pump repair in Nashua · Heat pump repair in Concord · Heat pump repair in Portsmouth · Heat pump repair in Dover · Heat pump repair in Derry · Heat pump repair in Salem · Heat pump repair in Laconia
Questions people ask
Who does the heat pump repair work?
An independent contractor, not New Hampshire HVAC Connect. This site connects the call. Confirm license and insurance before work starts.
How much does heat pump repair cost?
The contractor quotes heat pump repair after they assess the job. This site does not print a price. Call (603) 420-0791 with your ZIP code.
What should I have ready?
Your ZIP code, what the system is doing, and the fuel type if you know it. Ask what the quote includes before you agree to the work.