• Inspect thermostat
• Clean or replace 1″ filter
• Inspect heat exchanger
• Inspect temperature rise
• Inspect fan control
• Inspect furnace safety controls
• Inspect for gas leaks
• Inspect gas valve operation
• Inspect ignition system
• Inspect electrical connections
• Inspect gas pressure
• Lubricate all moving parts
• Inspect back-up heat elements
• Inspect sequencer operation
• Inspect amp and volt draw on motors
• Inspect all circuit breakers
• Inspect oil filter
• Inspect defrost control
• Inspect oil nozzle
• Test cycle for proper operation

Cooling Equipment Checklist

• Inspect thermostat
• Clean or replace 1″ filter
• Inspect temperature drop
• Clean condenser coil
• Inspect air flow
• Inspect all electrical connections
• Inspect amp and volt draw on motors
• Inspect refrigerant charge
• Lubricate moving parts
• Inspect condensate drain
• Inspect all capacitors
• Inspect contactor
• Amp check compressor
• Inspect compressor terminals
• Inspect disconnect power box
• Inspect power breaker
• Inspect evaporator coil when accessible
• Test cycle for proper operation