- Inspect & clean outdoor condenser
- Inspect the indoor coil
- Inspect for visible refrigerant leaks
- Inspect the condensate drain pain
- Inspect the wiring & control unit
- Inspect the condensate drain line & p-trap
- Inspect the blower assembly
- Inspect the thermostat operation & programming
- Verify suction & discharge pressure
- Verify supply & return air static pressures
- Inspect safety controls
- Inspect electrical components
- Verify temperature drop
- Verify correct superheat or sub-cooling
- Verify motor amps
- Clean control panel
- Verify correct voltage to equipment
- Verify blower speed
- Inspect refrigerant lines
- Cycle equipment to verify operation
- Clean or replace filter
Seasonal HVAC Maintenance Program Checklists
April: 21-Point Inspection
Air Conditioner
October: 21-Point Inspection
Heater
- Inspect wiring & control circuit
- Inspect blower assembly
- Visually inspect heat exchanger(s)
- Check/adjust fuel & air mixture
- Inspect venting & combustion air
- Check flame rectification & clean sensor
- Check/adjust inlet & outlet gas pressure
- Inspect for gas leaks
- Inspect safety controls
- Inspect electrical components
- Verify temperature rise (dry bulb)
- Verify flue temperature & draft
- Verify motor amps
- Clean the control panel & burners
- Verify supply & return air static pressures
- Verify correct voltage to furnace equipment
- Test & measure carbon monoxide
- Inspect thermostat operation & programming
- Clean or replace media filter or clean Electronic Air Cleaner
- Cycle equipment to verify operation
- Clean or replace filter