Service

• check voltage and amperage of all motors
• check airflow across the indoor coil
• lubricate all moving parts
• check air filters
• check airflow across the outdoor coil
• check compressor contactor
• check electrical wiring and connections
• check that condensate drain is open
• check indoor coil
• check operating pressure
• check temperature drop across indoor coil
• check indoor coil super-heat
• check outdoor sub-cooling
• check outdoor coil
• clean outdoor coil
• check condition of insulation on line sets

• clean and adjust thermostat
• check voltage and amperage of all motors
• check airflow across the indoor coil
• lubricate all moving parts
• check air filters
• check airflow across the outdoor coil
• check indoor fan relay
• check compressor contactor
• check electrical wiring and connections
• check that condensate drain is open
• check indoor coil
• check operating pressure
• check temperature drop across indoor coil
• check indoor coil super-heat
• check outdoor sub-cooling
• check outdoor coil
• check reversing valve
• check defrost control

• check indoor coil
• check air filters
• clean air filters
• check airflow across the indoor coil
• check outdoor coil
• clean outdoor coil
• check airflow across the outdoor coil
• check temperature drop across indoor coil
• check voltage and amperage to all motors
• check electrical wiring and connections
• check compressor contactor
• check that condensate drain is open
• check operating pressures
• check for possible leaks of refrigerant
• check condition of copper tubing insulation
• check outdoor unit's wall brackets and bolts
• change batteries of remote control
• check overall appearance of the system

• clean and adjust thermostat
• check voltage and amp draw
• lubricate motors
• check air filters
• check fan-limit switch
• check electrical wiring and connections
• check temperature rise across heat exchanger
• check firing rate
• check gas manifold pressure
• check for leaks

• clean and adjust thermostat
• check voltage and amp draw
• lubricate motors
• check air filters
• check fan-limit switch
• check electrical wiring and connections
• check temperature rise across heat exchanger
• check firing rate
• check for leaks
• change nozzle
• change filter

• check fan operation
• clean pilot and burners
• check gas pilot safety system
• check for proper ignition and combustion
• visually check venting and chimney draw
• check for adequate ventilation air
• paint firebox if required
• clean glass and inspect gasket
• clean equipment exterior

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