​Preventative Maintenance Checklist:

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• Inspect and clean blower assembly (includes blower housing, blower wheel and motor)

• On older models, lubricate motor and inspect and replace fan belt if needed

• Check combustion blower housing for lint and debris

• Inspect evaporator coil, drain pan and condensate drain lines.

• Inspect for gas leaks in gas furnaces

• Inspect burner assembly 

• Inspect ignition system and safety controls

• Inspect heat exchanger or heating elements

• Inspect flue system - check for proper attachment to the furnace, any dislocated sections, and for signs of corrosion.

• Inspect control box, associated controls, wiring and connections

• Clean or replace air filters