Do you actually come out to Walnut Creek or do you subcontract that area?

We come out ourselves. Our shop is in San Ramon, which puts Walnut Creek about 20 minutes away depending on traffic on 680. No subcontractors, no dispatch center. The technician who answers the call is the one doing the work.

Is Tempstar equipment a reasonable fit for Walnut Creek homes, or should I be looking at a different brand for a replacement?

For the ducted ranch-style and two-story homes that make up most of Walnut Creek, Tempstar is a solid practical choice. It runs on the same Carrier-engineered platform as the name-brand units, uses the same heat exchanger and refrigerant circuit components, and costs less upfront. The tradeoff is a shorter dealer network and a less recognized badge, not the hardware itself. If you are in an older home near the Civic Park neighborhood without existing ductwork, we would talk through a ductless heat pump instead, where the brand decision looks different.

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

The $75 gets you a full system evaluation: fault code retrieval, electrical measurements on the components relevant to your complaint, and a written quote before we do anything. If you authorize the repair that same visit, the $75 comes off the total. Work we perform carries a 1-year warranty on parts and labor. If you are looking at a full system replacement, installations are backed by a 10-year parts and 10-year labor warranty.

TEMPSTAR · WALNUT CREEK

Service · All Tempstar Models

Tempstar Heat Pump, AC & Furnace Repair · Walnut Creek, CA

Tempstar heat pump, AC, and furnace repair in Walnut Creek, where Diablo Valley summers push every cooling system hard.

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

Call (925) 999-4095

Tempstar in Walnut Creek

Tempstar heating and cooling in Walnut Creek.

Walnut Creek sits in the Diablo Valley where summer afternoons routinely hit triple digits and marine influence from the bay is blocked by the hills. Most of the housing stock here is mid-century ranch and two-story tracts built through the 1960s and 70s, nearly all of them ducted. Tempstar gas furnaces and split-system AC condensers fit that housing type exactly, which is why we see a steady stream of Tempstar service calls in the area. The QuietComfort single-stage and two-stage units are common; the communicating variable-speed models show up less often but do exist in the newer infill near Broadway Plaza.

When a Tempstar unit comes in for diagnostics, we pull board fault codes first and cross-reference the ICP service literature before touching anything. Tempstar shares the Carrier platform with Heil and Comfortmaker, so a code 33 lockout on a Tempstar QuietComfort furnace points us straight to the same ignition sequence faults we trace on those siblings. In the Walnut Creek climate, outdoor condenser units get hard use from May through October, so we check capacitor microfarad reading and contactor pitting as part of every AC call rather than waiting for the system to tell us those parts are failing.

Bay Area HVAC Service is our HVAC division, dispatching from our San Ramon base roughly 20 minutes from Walnut Creek. Diagnostic fee is $75 and we apply it toward the repair if you go ahead with the work. You get a written quote before we touch the equipment. Our technicians hold EPA Section 608 Universal certification; the company is licensed under CSLB 1136642. Repairs carry a 1-year warranty. New installations carry a 10-year parts and 10-year labor warranty, and we confirm what rebates are actually paying at estimate time rather than quoting stale numbers.

Common repairs we do

What we close on the truck.

Hot Surface Igniter Failure. The silicon nitride igniter in Tempstar QuietComfort furnaces is the most frequent service call we run in Walnut Creek. The board fires the igniter, it fails to reach temperature, and the unit locks out after one or two ignition attempts without ever opening the gas valve. You get no heat and a fault code on the board. We confirm with a resistance check rather than assuming, swap the OEM igniter, and cycle the system through a full heat call before we leave.
Flame Sensor Rod Cutting Out After Ignition. This one is common on furnaces that have been in service for several seasons. The burner lights normally, runs for 10 to 15 seconds, then shuts off and may attempt a retry lockout. The flame sensor rod has oxidized enough that it can no longer pass sufficient microamp signal to satisfy the control board. We clean the rod and measure the flame current. If it reads consistently below 1.5 microamps after cleaning, we replace it. It is a simple fix but it gets misdiagnosed as a gas pressure or heat exchanger issue when you skip the current measurement.
Condenser Capacitor and Contactor Wear. Walnut Creek AC condensers run long hours through summer. The run capacitor is the first component to degrade under that load, and the contactor pits from repeated switching. A weak capacitor shows up as a compressor that starts sluggishly, draws high amps, or trips the breaker on hot afternoons. We test capacitance with a meter, check contactor contact gap and surface condition, and replace both if they are outside spec. Doing them together on a Tempstar unit that has five or more summers on it is the sensible call.

Models we service

Tempstar product lines.

Gas furnaces (Ion and QuietComfort series)
Heat pumps and AC condensers
Variable-speed communicating systems
Air handlers and coils
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

Tempstar service in neighboring cities.

FAQ

Tempstar in Walnut Creek questions, answered.

Do you actually come out to Walnut Creek or do you subcontract that area?

We come out ourselves. Our shop is in San Ramon, which puts Walnut Creek about 20 minutes away depending on traffic on 680. No subcontractors, no dispatch center. The technician who answers the call is the one doing the work.
Is Tempstar equipment a reasonable fit for Walnut Creek homes, or should I be looking at a different brand for a replacement?

For the ducted ranch-style and two-story homes that make up most of Walnut Creek, Tempstar is a solid practical choice. It runs on the same Carrier-engineered platform as the name-brand units, uses the same heat exchanger and refrigerant circuit components, and costs less upfront. The tradeoff is a shorter dealer network and a less recognized badge, not the hardware itself. If you are in an older home near the Civic Park neighborhood without existing ductwork, we would talk through a ductless heat pump instead, where the brand decision looks different.
What does the $75 diagnostic fee actually cover, and what kind of warranty do I get on the repair?

The $75 gets you a full system evaluation: fault code retrieval, electrical measurements on the components relevant to your complaint, and a written quote before we do anything. If you authorize the repair that same visit, the $75 comes off the total. Work we perform carries a 1-year warranty on parts and labor. If you are looking at a full system replacement, installations are backed by a 10-year parts and 10-year labor warranty.

Need Tempstar service in Walnut Creek?

Tell us what is broken. We will quote it.