The independent heating and cooling company across the Willamette Valley and northwest Oregon
Multi-Zone System Repair
We repair multi-zone ductless systems, the setups where one outdoor unit feeds two or more indoor heads, for homeowners across Oregon and Washington. You need this work when one head blows warm while the others are fine, when a zone leaks water or throws an error code, or when the outdoor unit runs but half the house never changes temperature. Start by checking each head's remote settings and batteries, then swap the filters in every indoor unit. If a single zone still misbehaves, call us and tell us which one.
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 a multi-zone repair actually involves
Multi-zone work is mostly about isolating which part of a shared system failed. One outdoor unit, several indoor heads, and a branch box or manifold splitting refrigerant between them. A fault in one head can look like a whole-system problem, and a fault in the outdoor unit can look like one bad room. We run each zone independently, read the error history off the control board, and compare what every head is doing against what the outdoor unit thinks it is doing. That comparison usually points straight at the failed component.
What we check on site
We start with the indoor heads: blower wheels, coil condition, drain lines, and the thermistors that tell the system what the room temperature is. Clogged condensate drains are the single most common cause of a leaking head in our wet climate. Then we move outside to check the compressor, the reversing valve, defrost behaviour, and the electronic expansion valves that meter refrigerant to each zone. We also verify communication wiring between the outdoor unit and every head, since a single corroded connection can knock a zone offline entirely.
How we decide repair is the right call
We look at which component failed and how many zones depend on it. A bad indoor blower motor or a plugged drain is a straightforward repair, and the rest of the system keeps working while we do it. A failed compressor on an older multi-zone unit is a different conversation, because that part carries every head in the house. We tell you what we found, what it takes to fix, and whether the remaining zones are likely to follow. Then you decide with real information in front of you.
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.Multi-Zone System Repair — quick answers
Why is only one of my indoor heads not working?
Usually a fault local to that zone: a clogged condensate drain, a failed blower motor, a bad room thermistor, or a stuck expansion valve at the branch box. The other heads keeping up is a useful clue for us.
Can one zone be repaired without shutting down the rest?
Often yes, for indoor-side repairs like drains, blowers, or sensors. Work that requires opening the refrigerant circuit means the whole system comes down for the duration of the visit.
Why do my heads disagree about temperature?
Sun exposure, room size, and head placement all matter, and a drifting temperature sensor makes it worse. We measure actual room temperature against what each head reports before changing any parts.
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.
Multi-Zone System Repair
Ready to book multi-zone 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 →