Boiler Repair in San Francisco, CA
A boiler that quits on a cold night usually tells you why, if you know where to look. Most modern units show a fault or lockout code on the control board, and the pressure gauge on the front says a lot on its own. A residential hot water system typically sits around 12 to 15 psi cold. Far below that and the boiler may refuse to fire. Up near 30 psi and the relief valve starts to drip.
Reliable Boiler Service connects San Francisco, CA homeowners with boiler technicians who work through it in order: power and thermostat call, gas supply, ignition, flame proving, then water side problems like a seized circulator or an air-locked loop.
Plenty of repairs come down to one part. A failed igniter, a dirty flame sensor or a stuck zone valve can each leave the whole house cold while the boiler itself is fine.
Write down the code on the display before you reset anything. Then call Reliable Boiler Service at (866) 456-6311.
