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ADRIUM Service Solutions
(925) 999-4095 · San Ramon, CA · CSLB #1136642 · BBB A+

DAIKIN · SAN JOSE

Daikin Manufacturer-Authorized Service

Daikin Ductless & Heat Pump Repair · San Jose, CA

Daikin ductless and heat pump repair in San Jose, from the Willow Glen bungalows to the Almaden and Berryessa tracts.

  • $75 diagnostic (waived with repair)
  • Same-day best effort
  • CSLB #1136642
Call (925) 999-4095

Daikin in San Jose

Daikin heating and cooling in San Jose.

San Jose is huge and varied, from older Willow Glen and Naglee Park bungalows with no ducting to the big Almaden, Evergreen, and Berryessa tracts of the 1970s through 1990s. The older neighborhoods go Daikin ductless because retrofitting ducts into a craftsman is painful, and the tract homes add heads to cool a converted garage, an upstairs bonus room, or an ADU. We cover a lot of ground in this city.

I trained at the Daikin factory and we are an authorized servicer. San Jose is inland enough that the summers get genuinely hot, especially in the south and east valleys, so the heat pumps work hard and the outdoor units take real load. When a Daikin trips here in summer, I read the inverter code and check coil airflow and charge.

ADRIUM runs HVAC through Bay Area HVAC Service from San Ramon. We waive the $75 diagnostic with an approved repair, every quote is written, and we are out 7 days a week.

Common repairs we do

What we close on the truck.

  • ADU and garage-conversion single-head failures. So many San Jose ADUs and converted garages run on one Daikin head that this is our most common call here. The head runs constant in summer, the blower wheel loads, and it ices or loses capacity. I clean the wheel and coil and check the thermistors and drain.
  • Summer high-pressure inverter trips in the valleys. The Almaden and Evergreen heat plus a dirty condenser coil drive head pressure into an inverter trip. I clean the coil, check the fan, and set charge by subcooling rather than assuming a refrigerant fault from the symptom alone.
  • U-series communication faults on longer wire runs. Big tract homes put the outdoor unit far from the heads, and a U4 or similar communication code shows up when the interconnect wiring degrades or was undersized. I meter the S1-S2-S3 line end to end before touching either board.

Models we service

Daikin product lines.

  • Inverter heat pumps
  • Ductless and multi-zone mini-splits
  • Gas furnaces
  • Fit and slim-profile systems
  • Air handlers

Pricing and warranty

What it costs. What we stand behind.

  • $75

    Diagnostic visit. Waived when you book the repair with us.

  • Written

    90 days on consumables, 1 year on major parts, 2 years on sealed-system rebuilds. Quoted in writing before work starts.

  • CSLB

    #1136642. Bonded and insured. We file warranty paperwork when applicable.

Nearby cities

Daikin service in neighboring cities.

FAQ

Daikin in San Jose questions, answered.

  • How long is the drive from San Ramon to San Jose?
    From San Ramon down 680 it is about 45 to 55 minutes to most of San Jose, longer at commute times and depending on which part of the city. We also serve Cupertino, Sunnyvale, Saratoga, and Los Gatos nearby, so we batch the South Bay runs.
  • Do you service Daikin mini-splits in San Jose ADUs and garage conversions?
    Yes, that is most of what we do in this city. A single Daikin head heating and cooling an ADU is very common, and we service the head, the line set, and the condenser as one system.
  • My Daikin trips off on hot summer days in San Jose. Is that the compressor?
    Usually not. In the inland valley heat the common cause is a dirty outdoor coil or low charge pushing the inverter into a protection trip. We clean and recharge to spec and test under full load before talking about the compressor.

Need Daikin service in San Jose?

Tell us what is broken. We will quote it.

Call (925) 999-4095
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