HVAC  Preventive Maintenance Checklist

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• Check for refrigerant leaks and proper refrigerant levels on the high and low pressure sides. Repair all leaks.
• Check condenser coil and clean if needed. Keep debris away from unit. 
• Straighten any bent heat exchanger fins on condenser coil.
• Check suction pipe insulation and replace if needed.
• Lubricate fan motors and bearings. Replace worn bearings.
• Check fan blades for damage and clean if needed.
• Check belts, if any, for wear and proper tension. Replace if needed.
• Properly seal supply and return duct leaks.
• Check all wiring, electrical connections, contactors, capacitors, relays, etc. for wear, cleanliness and proper operation.
• Check thermostat for proper operation and calibration.
• Check air filter for proper size and cleanliness. Replace if necessary.
• Check evaporator coil and clean if needed.
• Check condensate pan and drain and clean or replace if needed. To prevent future sludge buildup, put anti-sludge tablets in the pan once a month.
• Check for the proper temperature difference between the supply and return air, also between the outside ambient air and the condenser fan discharge air.
• For heat pumps, check for proper operation of the reversing valve.

GAS/ ELECTRIC FURNACES

• Check safety controls, combustion blower, fan cycling and adjust if needed.
• Check heat exchanger and clean or recommend replacement if needed.
• Check standing pilots or electronic ignition controls for proper operation.
• Analyze flue gasses for proper combustion. Adjust burners if necessary.
• Check gas line, flue pipe and combustion air intake vent for leaks.
• Check temperature rise, amp draw and electrical connections on heating elements.

For all your HVAC preventive maintenance needs in Atlanta, please call us today at 770-995-0072 or complete our online request form.