Maintenance

Air Conditioning

Inspect and replace air filters if needed and available
Measure and record condenser AMP draw for efficiency.
Verify thermostat functionality and settings.
Check the fan blades for any damage or imbalance.
Ensure proper drainage of condensate lines (flush lines).
Tighten and secure all wiring connections.
Examine 240V wiring to the outdoor unit.
Inspect the blower wheel for excessive dust buildup (clean if necessary)
Clean the evaporator coil (if accessible).
Test and document the temperature at the coil.
Access the outdoor coil for cleanliness and functionality.
Clean the condenser coils.
Inspect the 24V wiring leading to the exterior wall.
Inspect and tighten the unit grounding for safety.
Inspect all 240V electrical connections.
Check the high-voltage disconnect for secure connections.
Check wall penetration for properly sealed
Visually inspect the contactor for signs of wear, burn marks, or pitting (clean the contactor)
Examine the fan motor for signs of damage or wear
Test the capacitor and inspect for any signs of failure

Inspect and adjust the thermostat setting for accuracy.
Verify venting for any rust or corrosion
Examine burners for rust and ensure proper operation.
Inspect low and high-voltage wiring for any damage and blockage.
Test the pressure switch and inspect the tubes for damage and blockage.
Test gas valve operation, check for leaks, and inspect for signs of corrosion.
Measure temperature rise across the heat exchanger.
Measure AMP draw for both the inducer motor and blower motor.
Verify proper drainage of condensate lines (if applicable).
Monitor the carbon monoxide levels in the exhaust flue.
Replace or clean the air filter (if applicable).
Inspect for rust, cracks, or holes in the heat exchanger.
Evaluate the burner setup for optimal performance.
Test the ignition system to confirm the correct functionality.
Observe the unit’s starting sequence for proper function.
Check for carbon monoxide presence in the supply air.
Access control wiring and tighten all loose connections.
Inspect the blower assembly for dust buildup and vibrations.
Check the hot surface ignitor or spark igniter for reliability operation (including the flame sensor/thermocouple).
Examine gas lines for; gas leaks, rust, corrosion, and proper support.