Every job starts with a real diagnosis, not a guess — here's the full scope of what our furnace repair technicians handle across Diablo, CA.
Ignitor & Pilot Light Repair
Standing pilot systems get checked for thermocouple failure, the most common cause of a pilot that won't hold. Techs handling ignitor & pilot light repair carry the specific parts and tools this job calls for, not a generic kit.
Gas Valve Diagnostics
A gas valve that won't open or won't seal is tested with proper manometer readings, not just listened to. Techs handling gas valve diagnostics carry the specific parts and tools this job calls for, not a generic kit.
Heat Exchanger Inspection & Repair
A cracked heat exchanger is a carbon monoxide risk and gets flagged immediately with the furnace shut down if needed. Techs handling heat exchanger inspection & repair carry the specific parts and tools this job calls for, not a generic kit.
Blower Motor & Limit Switch Repair
We test motor amp draw against rated spec before replacement. Techs handling blower motor & limit switch repair carry the specific parts and tools this job calls for, not a generic kit.
Flue & Venting Repair
Blocked or improperly sloped venting can back-draft combustion gases into the home. Techs handling flue & venting repair carry the specific parts and tools this job calls for, not a generic kit.
Thermostat & Control Board Diagnostics
We test low-voltage circuits before condemning the board. This is one of the most requested furnace repair calls we get across Diablo, CA.
