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Seasonal HVAC Maintenance Program Checklists

April: 21-Point Inspection
Air Conditioner

  • 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

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