Water heater expansion tank. Relief valve on water heater was opening because there’s a check valve by the meter and expansion tank was water logged. Replaced relief valve and expansion tank to resolve issue. Solenoid on Aprilaire 760 humidifier is making noise. Replaced solenoid on Aprilaire 760 humidifier.
Cleaned and serviced two furnaces for season. Unit had not been cleaned for a few years. Very dirty. Tested flame sensor, pressure switches, hsi, gas valve voltage, blower motor amperage and capacitor, inspected heat exchanger. Vacuumed out exhaust pipe. Systems are heating safely.
Westmont air conditioning repair. AC system not cooling. Repair system. Blowing cold air now.
Clean and check on two 90 percent Carrier furnaces. Changed both hot surface ignitors. Ignitors light the gas flames upon furnace start-up. Ignitors eventually crack and need to be replaced, like a light bulb.