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

GRANDAIRE · MOUNTAIN VIEW

Service · All GrandAire Models

GrandAire Heat Pump, AC & Furnace Repair · Mountain View, CA

GrandAire furnace, heat pump, and AC repair in Mountain View, serving the older ranch tracts and newer infill neighborhoods along the bay plain.

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

GrandAire in Mountain View

GrandAire heating and cooling in Mountain View.

Mountain View sits on the bay margin, which means outdoor units face real corrosion pressure from salt air and seasonal marine layer. Most of the city's housing stock is mid-century ranch construction in areas like Rex Manor and Cuesta Park, ducted central systems that have been running GrandAire or similar builder-grade equipment for years. Single-stage GrandAire furnaces and condensers are common in these homes because they went in cheap at the time and they still do the job. The climate here is mild by inland standards, but July and August still push into the upper eighties, so a condenser that quits in a heat wave is a real problem.

When a GrandAire unit stops working I read the board fault codes first. These units run the standard ICP control platform, so the blink sequences are reliable diagnostics. I check the igniter for cracks before I swap anything, test the flame sensor resistance rather than assuming it is fouled, and measure capacitor microfarad under load on the condenser. On units near the bayfront I also inspect the contactor contacts for pitting and the cabinet seams for early rust. GrandAire does not have proprietary controls or smart-board quirks that hide failures, which makes clean diagnosis straightforward.

Bay Area HVAC Service covers Mountain View out of our San Ramon base, and we carry the common GrandAire parts on the truck because they share the Carrier-family supply chain. The diagnostic fee is $75 and we waive it when you proceed with the repair the same visit. You get a written quote before any wrench turns. Our technicians hold EPA Section 608 Universal certification; the company holds CSLB license 1136642. Repairs carry a one-year warranty. If the visit turns into a replacement conversation, new installs carry ten years on parts and ten years on labor.

Common repairs we do

What we close on the truck.

  • Cracked Igniter, No Heat. GrandAire gas furnaces use a silicon nitride igniter that develops hairline cracks after several heating seasons. The board calls for heat, the inducer runs, but the igniter never glows hot enough to light the burner and the unit locks out after two or three attempts. In Mountain View homes that go weeks without running the furnace through the mild spring and fall, the igniter sits idle and the thermal cycling from season to season accelerates the cracking. We test resistance on the igniter, confirm the crack visually, and swap it for the correct ICP-spec replacement.
  • Flame Sensor Short-Cycling the Burner. A flame sensor coated with oxidation will read the burner as unlit even after a clean ignition, causing the board to cut gas within a few seconds of startup. The furnace lights, runs briefly, shuts off, and tries again until it locks out on repeated failures. This shows up as a specific fault blink on GrandAire control boards. We measure microamp signal across the sensor rod before cleaning it, confirm the reading recovers to spec, and check the flue for any restriction that could be contaminating the sensor faster than normal.
  • Failed Run Capacitor on the Condenser. The single-stage GrandAire condensers used in Mountain View are straightforward single-capacitor or dual-run designs, and the capacitor is the first thing to go in summer heat. Symptoms are a compressor that hums and trips on thermal overload, or a condenser fan that spins slowly and runs hot. On units near the Shoreline area where the air is saltier, the capacitor terminals and contactor contacts also show corrosion that accelerates the failure. We test capacitance under load, check the contactor for burned contacts, and replace whichever components are out of spec.

Models we service

GrandAire product lines.

  • Gas furnaces (value single-stage)
  • Heat pumps and AC condensers
  • Air handlers and coils
  • Builder and supply-house equipment
  • Diagnostics, board and igniter repair, warranty work

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.

FAQ

GrandAire in Mountain View questions, answered.

  • Do you actually come out to Mountain View, or is it too far from San Ramon?
    We make regular runs to Mountain View. The drive is straightforward and we schedule it the same way we schedule Tri-Valley calls. There is no travel surcharge added on top of the standard $75 diagnostic.
  • Is GrandAire equipment a reasonable fit for a Mountain View home, or should I be pushing for something better?
    Depends on what the unit is going into. For a rental unit, an ADU conversion, or a budget replacement in a Rex Manor or Cuesta Park ranch where you are not looking for variable-speed performance, GrandAire makes sense. You are buying a plain, serviceable machine on the Carrier platform, which means parts are common and inexpensive. If you want modulating capacity or advanced air handling, look at a mid-tier Carrier or Bryant instead. I will tell you straight at the estimate which direction fits the job.
  • What does the $75 diagnostic actually include, and what kind of warranty covers the work?
    The $75 covers a full system diagnostic: I read fault codes, test the components relevant to the failure, and give you a written quote for whatever repairs are needed. If you approve the repair the same or next day, the $75 comes off the total. Work we complete carries a one-year parts and labor warranty. If the unit is beyond reasonable repair and you go with a replacement instead, new installations are backed by a ten-year parts and ten-year labor warranty.

Need GrandAire service in Mountain View?

Tell us what is broken. We will quote it.

Call (925) 999-4095
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