Erv Smith Services Inc.

Gas Maintenance - Erv Smith Services Inc.

Gas Fired Heating & Air Conditioning

• Start and verify unit operation.
• Disengage power source.
• Inspect pilot light and thermacouple function/safety controls.
Flame
Electronic Ignition
Standing pilot
Safety on gas valve
Safety on pilot
Safety of fan and limit
• Remove and clean burners.
• Remove and clean pilot assembly.
• Replace thermacouple, if applicable.
• Inspect and clean ignition.
• Vacuum top and bottom of heat exchanger.
• Inspect heat exchanger for cracks, holes, rusting.
• Reinstall burners.
• Assemble and reinstall pilot assembly.
• Remove blower assembly.
• Clean blower assembly.
• Vacuum blower housing.
• Oil blower motor.
• Inspect blower bearings, oil if applicable.
• Inspect belt on blower, replace if necessary.
• Adjust belt tension.
• Reinstall blower assembly.
• Replace air filter/media.
• Clean Electronic, Electrostatic, or washable filters.
• Inspect and tighten electrical connections.
• Relight pilot.
• Engage/Start unit and check system cycle.
• Inspect gas valve function.
• Verify and adjust gas pressure.
• Measure volts and amps on motors.
• Check temperature differential. Adjust fan speed if necessary.
• Calibrate thermostat.
• Verify air flow and air distribution - adjust registers, if necessary.
• PTS Opinion on Heating System.
• Hot Water Heat System/Boiler - Balance and bleed radiators.
• High Efficiency - Remove and clean flame sensor.
• High Efficiency - Vacuum recuperative coil.
• High Efficiency - Clean condensate drain.
• High Efficiency - Inspect condensate lift pump, if applicable.
• High Efficiency - Inspect venting for restrictions.
• High Efficiency - clean pressure switch tube and air hole.

Erv Smith Services Inc

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