Heat Pump Repair in Concord, CA
Homes here need heat from November through April and cooling from June through September. If your system quits, tell us what it's doing and a licensed contractor who covers Contra Costa County will get in touch.
Tell us about the job
It takes about a minute.
Concord asks a heat pump to work most of the year
Your heat pump runs ten months out of the year here, heating from November through April and cooling from June through September. That is not a system that gets much rest. It cycles on winter nights that average 41°F and on summer afternoons that hit 85°F, and every one of those cycles puts a load on the compressor and the reversing valve.
Most of that strain shows up as a system that runs but does not keep up, or one that gets stuck heating when it should cool. Storms are the other thing to watch. Contra Costa County has logged 166 damaging wind events over the past ten years, and when the power goes out, your heat pump should come back on by itself once it returns. If it does not, that is worth a call.
- 6 months
- November through April, your system heats
- 4 months
- June through September, it cools
- 41°F
- the average winter night it heats against
- 85°F
- the average summer afternoon it cools against

NOAA nClimDiv, 1991–2020 normals
California requires HVAC contractors to hold a state license.
The license is issued to the contractor, not to the job, so it does not expire or renew with each repair. CSLB tests and records the contractor once, and that record stays attached to them across every job they take on, this one included.
A heat pump repair almost always means opening the refrigerant side of the system, and that work needs EPA Section 608 certification no matter what state you're in. That certification is separate from the state license. It covers the technician's handling of refrigerant specifically, not their standing as a contractor in California.
Sources: California Legislative Counsel · Contractors State License Board
- Why is my heat pump blowing cold air?
- In heating mode, a heat pump puts out air that feels cool next to your skin even when it's working right, because the air coming out is warmer than the room but still well below your body temperature. If the air is actually cold, not just cool, check that the thermostat is set to heat and not fan only. If it's set right and still blowing cold, the system may have lost refrigerant or the reversing valve may be stuck, and a contractor will need to check it.
- Why is there ice on my heat pump?
- A heat pump forms some frost on the outdoor coil during cold weather, and it should clear on its own through a defrost cycle several times a day. If ice is building up and not going away, airflow is likely blocked, either by a dirty filter, a coil covered in debris, or a fan that isn't turning. Ice that keeps growing means the defrost cycle isn't kicking in, and that needs a contractor to look at the control board or the sensor that tells it when to defrost.
- Why is my heat pump running but not cooling?
- If the unit is running but the air isn't cold, the most common cause is low refrigerant from a leak somewhere in the line. It can also mean the outdoor coil is caked with dirt and can't release heat, or the compressor itself is failing. Check first that the outdoor unit isn't blocked by leaves or debris, since that alone can cause weak cooling on a hot afternoon. If it's clear and still not cooling, a contractor will need to check the refrigerant charge and the compressor.

