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

MITSUBISHI · UNION CITY

Service · All Mitsubishi Models

Mitsubishi Ductless Mini-Split & Heat Pump Repair · Union City, CA

Mitsubishi ductless repair in Union City, for the Decoto and Alvarado tract homes and their added rooms.

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

Mitsubishi in Union City

Mitsubishi heating and cooling in Union City.

Union City is mostly 1960s through 1980s tract homes across the Decoto and Alvarado areas, single and two-story houses built with modest central systems. When owners convert a garage or add a back room, the existing ducts cannot reach it, so a Mitsubishi single-zone head is the usual answer, one head for the new space without re-running the trunk lines.

We service Mitsubishi Electric M-Series and MXZ multi-zone across Union City. The climate is bay-moderated with a breeze off the flats, so the systems run light most of the year, and the faults tend toward charge, drainage, and electrical parts rather than worn compressors.

I diagnose by fault code, and on a multi-zone a dead head is that head's board or sensor before the condenser. ADRIUM is EPA 608 Universal certified, CSLB #1136642, the $75 diagnostic is waived with repair, written quotes, 7 days.

Common repairs we do

What we close on the truck.

  • Garage-conversion head losing cooling. On the garage-conversion heads common in Union City, a slow flare leak drops the charge over a season until the head stops cooling. I find the leak, remake the flare, vacuum, and recharge to spec instead of adding refrigerant and leaving.
  • Condensate drain backup near the slab. Single-story Union City installs gravity-drain the condensate with little slope, and the line silts up and backs into the head. I clear and re-pitch the drain so the float switch stops cutting the unit off.
  • Condenser no-start, capacitor or contactor. A Union City outdoor unit that hums but will not spin is usually a failed run capacitor or a pitted contactor, not the compressor. I test both under load before calling it so a cheap part does not turn into a compressor quote.

Models we service

Mitsubishi product lines.

  • Ductless mini-splits (M-Series)
  • Multi-zone systems (MXZ)
  • Hyper-Heat (H2i) heat pumps
  • Ceiling cassettes
  • Concealed-duct 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

Mitsubishi service in neighboring cities.

FAQ

Mitsubishi in Union City questions, answered.

  • How quickly can you get to Union City from San Ramon?
    From San Ramon we come down through Fremont, which borders Union City, usually 30 to 45 minutes. Hayward and Newark also border it, so we route through and can sometimes pair a Union City visit with a nearby call.
  • Can one Mitsubishi head cool a converted garage the central system never reached?
    Yes, that is one of the most common ductless jobs in Union City. A single M-Series head sized to the garage handles heating and cooling on its own, with no tie-in to the house ducts.
  • What does the warranty cover?
    A repair carries a 1-year warranty on the work. A full install through our HVAC division carries 10-year parts and 10-year labor. It is all in the written quote before we start.

Need Mitsubishi service in Union City?

Tell us what is broken. We will quote it.

Call (925) 999-4095
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