The independent heating and cooling company across the Willamette Valley and northwest Oregon
Dual-Fuel System Repair
We repair dual-fuel systems, the pairing of a heat pump with a gas furnace that hands off heating duty as outdoor temperatures drop, for homeowners across Oregon and Washington. You need this work when the furnace fires on mild days, the heat pump keeps running in a hard freeze, or the two stages fight each other and the house never settles. Call us with your thermostat model and what you are seeing. Before you do, check the thermostat settings and batteries, swap a loaded filter, and look at the breaker.
Call (888) 365-6280- You reach a person, not a menu
- Open every day
- The quote comes first, in writing
Taking calls until 5:00 PM PT
What dual-fuel repair actually involves
A dual-fuel system is two heat sources and one brain deciding between them. Most of the trouble we find is in that decision, not in the equipment. We trace the control wiring between thermostat, heat pump and furnace board, verify the outdoor sensor is reading real temperatures, and check the balance point where the changeover is supposed to happen. Then we watch a full cycle. Seeing the handoff live tells us more than any single reading, because a system can test fine and still switch at the wrong moment.
What we check on the visit
We start with the thermostat configuration, since a dual-fuel setup installed with standard heat pump settings will behave strangely forever. From there we look at the outdoor temperature sensor and its placement, the changeover and lockout settings, the reversing valve and defrost board, refrigerant pressures and temperature split, and the furnace ignition sequence and safeties. Wet winters here mean we also inspect the outdoor coil and base pan for ice buildup and blocked drainage, which pushes defrost cycles into trouble and makes the furnace pick up slack it should not.
How we decide repair is the right call
If the heat pump still moves heat well and the furnace burns clean, the answer is usually a control or sensor repair rather than replacement. We tell you that plainly. When we find a failed compressor on aging equipment, or a heat exchanger concern, we explain what we saw and what your options are without pushing. Age matters, but so does how the system has been running and whether parts are still available. You get the findings and the reasoning, then you decide.
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Other heat pump repair work
What you get on every job
You approve a written quote first
Covering 162 cities across Oregon, Washington.Phones answered by people
Open 7 days, 8:00 AM to 5:00 PM PT.Every major brand, gas and electric
Carrier, Trane, Lennox, Goodman and more. We are not an authorized dealer for any of them.Dual-Fuel System Repair — quick answers
Why does my furnace run on a 50 degree day?
Usually a changeover setting or a bad outdoor sensor. The system thinks it is colder than it is, so it skips the heat pump. That is a control repair, and we can confirm it by watching one heating cycle.
Should both units ever run at the same time?
On most dual-fuel systems, no. The furnace and heat pump are meant to trade off, not overlap. If you hear both running together, the thermostat wiring or configuration likely needs attention.
Can I just set it to run the furnace all winter?
You can, and it will keep you warm, but you lose the heat pump on the mild days that make up most of our winter. We would rather fix the changeover so the system uses the right stage.
How it works
- Step 1
Tell us the symptom
Call or fill in the quote form. Describe the noise, the smell, the temperature, and when it started. That detail helps us bring the right parts and gives you an honest idea of the visit ahead.
- Step 2
We diagnose on site
A technician checks the thermostat, airflow, electrical connections, refrigerant behaviour and the outdoor unit. We tell you what failed and why, in plain language, before anyone reaches for a part or a price.
- Step 3
You choose the repair
We lay out the fix, any parts on order, and what happens if you wait. Once you agree, we do the work and confirm the system holds temperature before we pack up and leave.
- A real person answers
- Open 7 days
- Written quote before work starts
Why homeowners call us
- Heat pumps are our normalIn this region heat pumps outnumber furnaces, so defrost boards, reversing valves and short cycling in wet weather are everyday work for us. We know how these systems behave in a cold December rain, not just on a test bench.
- Wet winter defrost problemsIce on the outdoor coil, a unit that runs and runs without warming the house, puddles that refreeze under the pad. We trace whether it is a sensor, a stuck valve, drainage, or airflow, then fix the actual cause.
- Filtration after smoke seasonWildfire smoke turned indoor air quality into a real conversation here. We look at filter fit, return sizing and IAQ options that your blower can actually push air through, rather than choking the system with the wrong media.
- We explain before we chargeYou get the diagnosis, the options and the trade-offs before work starts. If a repair is not worth it on an old system, we say so. No pressure, no jargon dumped on you at the door.
- 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.
Dual-Fuel System Repair
Ready to book dual-fuel system repair?
Describe the system and your ZIP. The written quote comes before any work.
- A real person answers
- Open 7 days
- Written quotes
- All major brands
- Gas & electric
Rather not call? Get a free quote →