131 HVAC jobs completed in San Ramon since July 2022.
A damaged board in an attic furnace
One copper trace on the back of the Lennox control board was visibly burned. We installed a replacement board and moved the furnace wiring to it. The photographs show the old circuit trace and the replacement in the attic furnace.
What to bring to a heating call
Write down a status-light pattern visible through the furnace-door window before calling. Checking the burned circuit trace in this San Ramon repair required the technician to open the unit. Leave that internal inspection to the service visit.
San Ramon applications use the CSS portal
San Ramon directs building-permit applicants to its CSS portal. The City warns that the chosen permit type cannot be changed after submission. Review that selection before submitting the application.
City of San Ramon Permit Center · checked October 28, 2026
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Danville · Alamo · Dublin · Pleasanton .
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San Ramon, CA · 7am–7pm · 7 days · no overtime charges