Portland Heat Pump Repair:Heat Pump Down?
We'll Fix It Today
Blowing cold air, iced over, running nonstop, or not starting at all? We test the refrigerant charge, reversing valve, defrost controls, and electrical parts, then fix what failed. We finish most repairs the same day. The diagnostic is $189, applied toward the repair. Most repairs run $200-$800. Average response time is 90 minutes, with no overtime charges.
A NATE-certified Efficiency Heating & Cooling technician does the work. We're based at 14913 SE Kellogg Ave in Milwaukie, licensed as Oregon CCB #187834, in business since 2008, and rated 4.9 stars on Google. We repair every type of heat pump system, and when it's time to upgrade, our heat pump installation contractor handles that too.
Emergency Repair
$189 Diagnostic Fee
Common Heat Pump Problems We Fix Today
We diagnose and repair all major heat pump brands — serving Portland since 2008
Heat Pump Not Heating or Cooling
No heat in winter or no cooling in summer? We diagnose reversing valve, refrigerant, and compressor issues to restore both functions fast.
Heat Pump Short Cycling
System turning on and off repeatedly? We fix thermostat issues, refrigerant levels, and electrical problems that cause short cycling.
Strange Noises from Unit
Grinding, squealing, rattling, or hissing can mean a fan motor, compressor, or refrigerant problem. We diagnose and repair same day.
Ice Buildup on Outdoor Unit
Heavy frost or ice on your heat pump? We repair defrost boards, check refrigerant levels, and restore proper operation.
Heat Pump Blowing Cold Air
Heat pump running but only cold air? Common causes include low refrigerant, a faulty reversing valve, or auxiliary heat problems.
Uneven Heating/Cooling
Hot and cold spots throughout your home? We balance airflow, check ductwork, and optimize your system for even comfort.
Why is my heat pump blowing cold air in heating mode?
Check the thermostat first: Heat mode, fan on Auto. With the fan on On, the blower runs between cycles and moves room-temperature air that feels cool. Heat pump air is also warm, not hot, so it feels cooler than furnace air. A few minutes of cool air during defrost is normal.
If the air stays cool, the usual cause is a reversing valve stuck in cooling mode, low refrigerant from a leak, or an outdoor fan or compressor that has stopped. If it only happens on the coldest days, the backup heat may not be coming on. See what to do when a heat pump won't heat in cold weather.
Is ice on the outdoor unit normal?
A light coat of frost is normal in heating mode, especially on damp days near freezing. The defrost cycle clears it by switching to cooling mode for a few minutes to warm the outdoor coil. You may hear a whoosh, see steam, and notice the outdoor fan stop. None of that is a fault.
Ice is a problem when it builds for hours, covers the whole coil, or encases the fan. That points to a defrost cycle that has stopped working, low refrigerant, or blocked airflow.
Do not chip at the ice or pour water on it; the coil is easily damaged. If the house is getting cold, switch to emergency heat and call us.
Should I use emergency heat while I wait?
Yes, if the heat pump has stopped heating or the outdoor unit is iced over. Emergency heat shuts off the outdoor unit and runs your backup heat: electric heat strips in most homes, or the gas furnace in a dual-fuel system. Without a backup heat source, the setting does nothing.
Heat strips cost more to run than the heat pump, so switch back to Heat after the repair. If their breaker trips, leave it off and call us.
Auxiliary heat is different. It turns on by itself during defrost, on cold mornings, or after a big setpoint change. If auxiliary heat stays on for hours, the heat pump is not carrying its share.
Why does my heat pump run constantly in a Portland winter?
Long run times are normal. A heat pump delivers steady, moderate heat, so it runs longer than a furnace. On cold, damp days, it may run almost nonstop, pausing only to defrost. If the house holds its setpoint, it is working. Here is what normal heat pump operation looks like in winter.
Running nonstop in mild weather while the house falls short is not normal. Common causes are a clogged filter, leaves matted against the outdoor coil, low refrigerant, leaky ducts, or a failing outdoor fan. Large nighttime setbacks also force long morning recoveries, often on aux heat.
What can I check before I call?
These checks are safe and sometimes fix the problem:
- Thermostat: Heat (or Cool), a few degrees past room temperature, fan on Auto. Fresh batteries if it uses them.
- Filter: replace it if it is clogged.
- Breakers: reset a tripped heat pump or air handler breaker once. If it trips again, leave it off and call us.
- Outdoor unit: clear leaves, snow, and debris from around it. Leave any ice on the coil alone.
- Sounds: note any grinding, buzzing, or repeated clicking, and when it happens.
Do not open either unit. Wiring, capacitors, fan blades, and refrigerant lines are a job for a licensed technician.
What happens after I call?
Call & Dispatch
0-90 minCall our 24/7 line, and we dispatch a NATE-certified technician. Average response time is 90 minutes.
Expert Diagnosis
90 minWe test refrigerant pressures, electrical parts, airflow, and the defrost controls.
Upfront Pricing
2 hoursClear explanation of the problem with exact repair costs before any work begins. No surprises.
Professional Repair
2-4 hoursWe use OEM parts and finish most repairs on the same visit, then test the system.
System Restored
Same DayWe confirm the heat pump heats and cools normally before we leave. All work is guaranteed, with parts warranty included.
Heat Pump Repair Pricing
No surprises, no overtime fees, no hidden charges
Diagnostic
Applied to repair cost
Most Repairs
Same day completion
Major Repairs
Compressor, coils, etc.
Repair or replace?
Most heat pump problems are worth repairing, and we will tell you when one is not. Replacement is worth pricing when the system is older, needs a compressor, or keeps breaking down.
If you decide to replace, our heat pump installation page explains the process. Energy Trust of Oregon may offer incentives; we confirm current offers in your estimate.
All Heat Pump Types Serviced
Ducted Heat Pumps
Central systems with ductwork
Ductless Mini-Splits
Mitsubishi, Daikin, Fujitsu
Dual Fuel Systems
Heat pump + gas backup
Air Source Heat Pumps
Standard & cold-climate
Written by
Owner & HVAC Specialist
Matt Rohman founded Efficiency Heating & Cooling in 2008, bringing over 30 years of hands-on HVAC experience to every project. A Portland native and Benson Polytechnic graduate, Matt personally oversees all major installations and complex repairs.
Heat Pump Repair FAQs
Common questions about our heat pump repair service
How much does heat pump repair cost in Portland?
Most heat pump repairs cost $200-$800. The $189 diagnostic is applied toward the repair. Major repairs, such as a compressor or coil, run $800-$1,500. There are no overtime charges.
Should I repair or replace my heat pump?
Repair usually makes sense when the system is in good shape. Price a replacement when it is older, needs a compressor, or keeps breaking down. Newer heat pumps are more efficient. Energy Trust of Oregon may offer incentives on a new system; we confirm current offers in your estimate.
How long does heat pump repair take?
Most heat pump repairs are finished the same day. The diagnostic takes 30-60 minutes. Simple repairs, such as a capacitor or thermostat, take 1-2 hours. Refrigerant leaks and compressor work can take 3-4 hours.
Why is my heat pump not heating or cooling?
Common causes are low refrigerant, a stuck reversing valve, an iced outdoor coil, a failed capacitor or fan motor, or the wrong thermostat setting. Check the thermostat mode, the filter, and the breakers first. If those look fine, call us.
Do you repair ductless mini-split systems?
Yes. We repair all major ductless mini-split brands, including Mitsubishi, Daikin, Fujitsu, and LG. Common issues include refrigerant leaks, clogged indoor drains, and failed fan motors or boards.
Do you offer emergency heat pump repair?
Yes. Our emergency line is open 24/7, and the average response time is 90 minutes across the Portland metro area. We handle no-heat, no-cooling, and refrigerant leak calls, and technicians carry common parts.
Why is ice forming on my heat pump?
Light frost in heating mode is normal, and the defrost cycle melts it off. Heavy ice that stays on the coil or covers the fan points to a defrost control problem, low refrigerant, or blocked airflow. Don't chip it off; switch to emergency heat and call us.
Do you work on all heat pump brands?
We repair all major heat pump brands, including Carrier, Bryant, Trane, Lennox, Rheem, Mitsubishi, Daikin, and Fujitsu, on ducted, ductless, and dual-fuel systems.
Heat Pump Repair Service Areas - Portland Metro
We work on all major brands, including ductless mini-splits, in these communities.
Same-Day Heat Pump Repair Across the Portland Metro
Technicians standing by 24/7 — call now and we'll get your system running again
Heat Pump Troubleshooting Guides
Expert insights from our Portland HVAC professionals