Do you actually come out to San Ramon, or do I need to go somewhere else for Tempstar service?

San Ramon is our home base. We work the Tri-Valley five days a week and often have same-day or next-day availability for Tempstar repairs depending on the call volume. No trip fee applies for San Ramon addresses.

Is Tempstar equipment a reasonable choice for a San Ramon home, or should I be looking at other brands if mine needs replacing?

Tempstar runs on the same Carrier-engineered platform as Heil and Comfortmaker. The components, refrigerant circuitry, and board logic are the same across those three brands. What you are buying with Tempstar is Carrier-quality hardware at a lower badge cost, usually through an independent contractor rather than a big dealer network. For a San Ramon home that needs solid cooling capacity and does not need all the communicating variable-speed features of a higher-end Carrier or Bryant, Tempstar is a sound choice. We can walk you through the specs at estimate time and confirm what utility rebates actually pay for the specific model you are considering.

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

The $75 covers a full diagnostic: we pull board fault codes, measure electrical values, check pressures or temperatures depending on the complaint, and give you a specific cause and a written repair price. If you approve the repair that same visit, the $75 is waived and folds into the job. Parts and labor on repair work carry a 1-year warranty. If we install new equipment rather than repair the existing system, that carries a 10-year parts and 10-year labor warranty.

TEMPSTAR · SAN RAMON

Service · All Tempstar Models

Tempstar Heat Pump, AC & Furnace Repair · San Ramon, CA

Tempstar heat pump, AC, and furnace repair in San Ramon, where Tri-Valley summers push these units hard and the inland heat separates a marginal capacitor from a working one fast.

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

Call (925) 999-4095

Tempstar in San Ramon

Tempstar heating and cooling in San Ramon.

San Ramon sits inland enough that summer afternoons regularly push past 95 degrees, and the newer subdivisions east of Crow Canyon Road and up toward Dougherty Valley are full of mid-2000s and 2010s tract homes that came with builder-grade Tempstar systems from day one. That hardware is now 15 to 20 years into its service life, which puts it squarely in the window where capacitors, contactors, and igniters start going. The older ranch-style stock on the western flats often has original ductwork that restricts airflow and accelerates the same wear.

We start every Tempstar call by pulling fault codes off the control board before we touch anything else. Tempstar shares the ICP/Carrier platform with Heil and Comfortmaker, so the diagnostic sequence, wiring maps, and fault logic are the same across all three. In cooling season we measure static pressure across the coil because dirty evaporator coils are common here and they load down the compressor in a way that looks like a refrigerant problem but is not. On the heating side we check the draft inducer and pressure switches early, since those are the first parts to go on units that have logged thousands of heating hours in Tri-Valley winters.

Bay Area HVAC Service is our HVAC division, based right here in San Ramon, CSLB 1136642. We charge a flat $75 diagnostic fee, and that fee is waived if you approve the repair on the same visit. Before any work starts you get a written quote with the scope and the price, no surprises. Our technicians hold EPA Section 608 Universal certification for refrigerant handling. Installed equipment carries a 10-year parts and 10-year labor warranty. Repair work is backed by a 1-year warranty on the parts and labor we put in.

Common repairs we do

What we close on the truck.

Hot Surface Igniter Failure on Tempstar Gas Furnaces. The silicon nitride igniters on Tempstar 80 and 96 percent furnaces are fragile and they degrade over time from thermal cycling. The unit will call for heat, the inducer will run, but the burners never light and the board trips a lockout after two or three failed attempts. We confirm the igniter is drawing the right current before condemning it, because a weak igniter that still glows can fool a visual check while still failing to reach ignition temperature reliably. Replacement takes under an hour and the new part carries our 1-year repair warranty.
Flame Sensor Carbon Buildup Causing Short-Cycle Lockouts. A dirty flame sensor is one of the most common service calls we see on Tempstar furnaces that have been running for five or more years without a cleaning. The furnace lights normally, runs for a few seconds, then shuts off and retries. Left alone it will lock out and show a fault code for flame loss after ignition. We clean and test the sensor on every tune-up, and on a repair call we check it before assuming the gas valve or board is at fault, because a sensor clean costs a fraction of either of those parts.
Condenser Capacitor and Contactor Wear on Tempstar AC Units. In San Ramon the cooling season is long and the AC runs hard through June, July, and August. Run capacitors and contactors take the most abuse on any air-cooled condenser, and Tempstar units are no different. A failing run capacitor causes the compressor or fan motor to draw high amperage, run hot, and eventually trip on thermal overload. A pitted contactor drops voltage under load and can cause the compressor to hum without starting. We measure capacitance and check contact faces on every AC service call, and we replace both if either is outside spec, because they tend to fail together on high-hour units.

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 San Ramon questions, answered.

Do you actually come out to San Ramon, or do I need to go somewhere else for Tempstar service?

San Ramon is our home base. We work the Tri-Valley five days a week and often have same-day or next-day availability for Tempstar repairs depending on the call volume. No trip fee applies for San Ramon addresses.
Is Tempstar equipment a reasonable choice for a San Ramon home, or should I be looking at other brands if mine needs replacing?

Tempstar runs on the same Carrier-engineered platform as Heil and Comfortmaker. The components, refrigerant circuitry, and board logic are the same across those three brands. What you are buying with Tempstar is Carrier-quality hardware at a lower badge cost, usually through an independent contractor rather than a big dealer network. For a San Ramon home that needs solid cooling capacity and does not need all the communicating variable-speed features of a higher-end Carrier or Bryant, Tempstar is a sound choice. We can walk you through the specs at estimate time and confirm what utility rebates actually pay for the specific model you are considering.
What does the $75 diagnostic cover, and what kind of warranty do I get on the repair?

The $75 covers a full diagnostic: we pull board fault codes, measure electrical values, check pressures or temperatures depending on the complaint, and give you a specific cause and a written repair price. If you approve the repair that same visit, the $75 is waived and folds into the job. Parts and labor on repair work carry a 1-year warranty. If we install new equipment rather than repair the existing system, that carries a 10-year parts and 10-year labor warranty.

Need Tempstar service in San Ramon?

Tell us what is broken. We will quote it.