Do you actually come out to Los Gatos, or is that too far from San Ramon?

We drive to Los Gatos regularly. It is a straight shot down 680 and 85 from our San Ramon base, and the South Bay is a normal part of our service area. Scheduling is the same as anywhere else we go.

GrandAire is pretty basic equipment. Does it make sense for a Los Gatos home, or should I be looking at something better?

Depends on the situation. For a rental cottage, a detached ADU, or a budget replacement on a home you are selling, GrandAire is a reasonable call. It is plain single-stage equipment on the Carrier platform, which means parts are widely available and cheap. If you are heating and cooling your primary residence in the Los Gatos hills and expect to stay put, spending more for a communicating or two-stage system will pay back in comfort and efficiency. We will tell you which scenario you are in and what we would put in our own rental before you commit to anything.

What does the $75 diagnostic actually include, and what kind of warranty do I get on the repair?

The $75 covers a full diagnostic: we read fault codes, run the equipment through its operating sequence, take measurements, and tell you exactly what failed and why. If you approve the repair, that $75 comes off the total. We give you a written quote before we touch anything. Parts and labor on the repair are warranted for one year. If you are doing a full system replacement instead, that install comes with a ten-year parts and ten-year labor warranty.

GRANDAIRE · LOS GATOS

Service · All GrandAire Models

GrandAire Heat Pump, AC & Furnace Repair · Los Gatos, CA

GrandAire heat pump, AC, and furnace repair in Los Gatos, where hillside homes and warm inland summers push budget equipment hard.

$75 diagnostic (waived with repair)
Same or next-day best effort
CSLB #1136642

Call (925) 999-4095

GrandAire in Los Gatos

GrandAire heating and cooling in Los Gatos.

Los Gatos sits at the edge of the Santa Cruz Mountains foothills, and the housing stock reflects that range. The older bungalows along University Avenue and the mid-century ranch tracts off Blossom Hill Road typically run ducted gas furnaces and split AC systems. Up in the hills, newer builds and ADUs often have heat pumps. GrandAire shows up in all of these contexts, mostly as a builder-grade install or a cost-conscious replacement in a rental or secondary unit. The summers here push into the 90s in the inland valley pockets, which loads the cooling side hard, and that is where we see the most GrandAire calls.

Diagnosing GrandAire is straightforward because the platform is shared with the broader ICP family. We read the board fault codes first, check the sequence of operation, and confirm where the failure actually is before touching a part. On furnaces we verify igniter resistance, flame sensor microamps, and pressure switch performance before assuming a bad component. On the cooling side we check static pressures and capacitor health under load, not at idle. We do not swap parts to find the problem. For Los Gatos hill homes where the air handler may be in a cramped closet or under a low crawl, we confirm everything is accessible and documented before quoting.

Bay Area HVAC Service runs out of San Ramon. The $75 diagnostic fee gets credited in full if you move ahead with the repair. We hand you a written quote before any work starts, no surprises. Our techs hold EPA Section 608 Universal certification, and we operate under CSLB license 1136642. Repairs carry a one-year warranty on parts and labor. New installs are backed by ten years on parts and ten years on labor. If there are utility or state rebates that apply to your situation, we confirm the current amounts at estimate time.

Common repairs we do

What we close on the truck.

Igniter failure on GrandAire gas furnaces. Silicon nitride igniters on GrandAire furnaces are a known consumable, and the dry heat cycling in the Los Gatos valley accelerates their fatigue. The furnace calls for heat, the inducer runs, and then you get a lockout with a fault code for failed ignition. We measure igniter resistance cold to confirm it is out of spec before pulling it, then replace and run a full heat cycle to confirm flame establishment. Usually a same or next-day fix.
Flame sensor short-cycling the burner. A coated or oxidized flame sensor loses its ability to pass the microamp signal that tells the board the burner is lit, so the board drops the gas valve as a safety measure. On GrandAire single-stage furnaces this shows as the burner lighting, running briefly, shutting off, and the sequence repeating until lockout. We clean or swap the sensor, verify the microamp reading is back in the acceptable range, and confirm the board is not logging any secondary faults before closing the call.
Capacitor and contactor failures on GrandAire condensers. Single-stage GrandAire condensers do not have soft-start components, so the compressor and fan motor pull full locked-rotor current every time the unit kicks on. In Los Gatos summer heat that stresses run capacitors and burns contactor contacts over two or three seasons. Symptoms are a compressor that hums and trips on thermal overload, or a condenser fan that has stopped spinning while the compressor runs. We test capacitor microfarad values under load, inspect the contactor for pitting, and replace what has failed. Parts are standard ICP-family and typically in stock.

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.

Nearby cities

GrandAire service in neighboring cities.

FAQ

GrandAire in Los Gatos questions, answered.

Do you actually come out to Los Gatos, or is that too far from San Ramon?

We drive to Los Gatos regularly. It is a straight shot down 680 and 85 from our San Ramon base, and the South Bay is a normal part of our service area. Scheduling is the same as anywhere else we go.
GrandAire is pretty basic equipment. Does it make sense for a Los Gatos home, or should I be looking at something better?

Depends on the situation. For a rental cottage, a detached ADU, or a budget replacement on a home you are selling, GrandAire is a reasonable call. It is plain single-stage equipment on the Carrier platform, which means parts are widely available and cheap. If you are heating and cooling your primary residence in the Los Gatos hills and expect to stay put, spending more for a communicating or two-stage system will pay back in comfort and efficiency. We will tell you which scenario you are in and what we would put in our own rental before you commit to anything.
What does the $75 diagnostic actually include, and what kind of warranty do I get on the repair?

The $75 covers a full diagnostic: we read fault codes, run the equipment through its operating sequence, take measurements, and tell you exactly what failed and why. If you approve the repair, that $75 comes off the total. We give you a written quote before we touch anything. Parts and labor on the repair are warranted for one year. If you are doing a full system replacement instead, that install comes with a ten-year parts and ten-year labor warranty.

Need GrandAire service in Los Gatos?

Tell us what is broken. We will quote it.