No heat or no cooling
Checking the thermostat call, outdoor unit, reversing valve and controls to find why the system runs but does not heat or cool.
HEAT PUMP REPAIR · ATHERTONHeat Pump Repair
Heat Pump Repair
in Atherton, CA.
Atherton heat pump short cycling, frozen up or showing a fault code? HAXX repairs ducted and ductless heat pumps on estates, guest houses and ADUs.
Serving Lindenwood, West Atherton, Lloyden Park, Atherton Oaks and West of the Alameda and the rest of Atherton. Share your address to confirm availability.
4.8 rating · 515+ reviewsHVAC & electrical, one teamPermits handledCA Lic #1081990
Heat pump problems
we diagnose and fix.
Ducted systems, ductless mini-splits and multi-zone heat pumps. Tell us what the system is doing and we start the visit with that symptom.
Ice on the outdoor unit
Some frost in winter is normal. A unit that stays iced points to airflow, refrigerant or defrost-control problems.
Mini-split error codes
Blinking lights and error codes on Mitsubishi, Daikin, Fujitsu and other ductless systems, traced to the sensor, board or refrigerant issue behind them.
Short cycling and noise
Units that start and stop, rattle, hum or trip the breaker are checked for electrical, airflow and sizing problems.
Water leaks from indoor heads
Clogged condensate lines and drain pumps cleared and tested before water damages the wall.
Repair or replace advice
If the system is not worth fixing, you get the reasons in writing and options to compare, not pressure.
ATHERTON DETAILSHeat pump service
Heat pump service
for Atherton estates.
Large Atherton homes often run several heat pumps at once: one per floor or wing, plus separate units for a pool house or guest cottage. One failed zone can leave part of the house uncomfortable while the rest runs fine.
01
Multi-system homes
HAXX checks each zone, thermostat and outdoor unit so a weak system is not hidden behind one that is working hard to compensate.
02
Defrost and refrigerant faults
Iced coils, failed defrost sensors, reversing valves and slow leaks are traced to the cause before any refrigerant is added.
03
Wiring and controls
As a C-10 electrical contractor too, HAXX tests breakers, disconnects, low-voltage wiring and communicating controls on the same call.
What customers say
about HAXX.
Rated 4.8 across 515+ reviews on Housecall Pro, Google and Facebook. Read more reviews.
★★★★★
“Thorough diagnostics of A/C system, identified and repaired the issue quickly!”
★★★★★
“Service was performed well and on time. Service person was highly skilled and provided easy to understand options to deal with the issue. Price for diagnostics was reasonable and easy to pay online.”
★★★★★
“Our commercial building had several HVAC problems, and their team carefully diagnosed each unit, explained the available options, and never pressured us into unnecessary replacements. They worked hard to repair what could be repaired and kept us informed throughout the process.”
HOW A REPAIR VISIT WORKSFrom the first call
From the first call
to a working system.
01
Tell us the symptom
Brand, model and what it is doing. Photos of the label or error code help.
02
Diagnose on site
The technician tests the system and finds the cause, not just the symptom.
03
Approve the price
You see the repair price before work starts, and the options if a repair is not worth it.
04
Fix and test
The repair is completed and tested, or scheduled once the part arrives.
HAXX ON SITEReal work.
Real work.
Real homes and businesses.
A closer look at recent heating and cooling work by HAXX.
THE PEOPLE BEHIND THE WORKHands-on work.
Hands-on work.
A real look inside.
On site during a commercial VAV box repair: access above a suspended ceiling, equipment and the work in progress.
Explore recent projectsRecent Projects
Heat Pump Air Handler Service
Heat pump air handler service.
Compressor Replacement
Compressor replacement.
Mitsubishi Leak Detection
Mitsubishi leak detection.
After-Hours System Repair
After-hours system repair.
Heat Pump Installation
Heat pump installation.
Outdoor Heat Pump Installation
Outdoor heat pump installation.
Heat Pump Air Handler Installation
Heat pump air handler installation.
Lennox AC Installation
Lennox ac installation.
GOOD TO KNOW
Heat Pump Repair in Atherton: questions, answered.
Do you service heat pumps in Atherton guest houses and pool houses?
Yes. HAXX repairs main-house systems and the separate units that serve guest houses, pool houses and ADUs.
What causes a heat pump to ice over in winter?
Usually a defrost sensor or control fault, low refrigerant or poor airflow. HAXX tests each before recommending a repair.
Is it worth repairing an older heat pump?
It depends on the fault, the refrigerant the system uses and the condition of the compressor and coils. HAXX explains the repair cost against replacement options so you can decide.
Do you repair ductless mini-splits?
Yes. HAXX services wall, ceiling cassette and ducted mini-split heads, single-zone and multi-zone.
LET’S TALK ABOUT YOUR PROPERTYTell us what you need.
Tell us what you need.
We’ll start there.
Share the property, equipment and questions you have in mind.
(408) 901-8315
Call HAXX to discuss your property and scheduling.