Preventative Maintenance

Blairco Maintenance Checks

• Cycle and test run equipment from the thermostat
• Check all electrical connections
• Check amperage to compressor & motors
• Check and clean evaporator & condenser coils
• Chemically treat condensate pan
• Check belt condition & tension
• Check blower motor & fan
• Check refrigerant charge
• Check ignition controls
• Inspect heating elements
• Inspect & clean burners
• Lubricate motors and moving parts
• Inspect, clean or replace air filters (1″ & 2″ included)
• Check and calibrate thermostats
• Check all safety and limit controls
• Inspect gas lines
• Check and adjust gas pressure
• Test and record return air, supply air and outdoor temperatures

Gas Furnace Checks

• Cycle the furnace
• Limited blower cleaning
• Measure and record delta T
• Clean flame sensor
• Cycle and clean condensate pump
• Check condensate drain
• Rate/set furnace input
• Measure and record inducer motor amp draw
• Inspect flue pipe
• Measure and verify ignition protocols
• Clean and adjust pilot assy
• Measure and adjust gas pressure
• Brush and inspect heat exchanger
• Conduct bubble test for gas leaks
• Clean burner compartment
• Ohm out HSI record reading

Heat Pump/AC Checks

• Check disconnect
• Check fuses
• Check refrigerant service caps and valves
• Check contactor
• Check fan blade
• Check fan motor bearing play
• Check defrost cycle
• Check capacitors and record reading
• Check reversing valve operation
• Check TXV location & mounting
• Check unit level
• Clean debris out from inside of unit
• Clean outside unit
• Check lineset insulation/condition