Spring HVAC Maintenance Checklist: Prepare AC Systems for Summer

Outdoor Unit Inspection & Cleaning

Visual Inspection

• Remove any debris (leaves, grass, dirt) from around unit
• Check for physical damage from winter weather
• Ensure 2ft clearance on all sides
• Inspect refrigerant lines for insulation damage
• Check electrical connections at disconnect

Condenser Coil Cleaning

1. Turn off power at disconnect
2. Remove top grille and fan if needed for access
3. Brush loose debris from fins
4. Apply coil cleaner per manufacturer directions
5. Rinse thoroughly from inside out
6. Straighten bent fins with fin comb

Indoor Components

Air Filter

• Replace or clean filter
• Verify correct size and MERV rating
• Educate customer on replacement schedule

Evaporator Coil

• Inspect for dirt buildup
• Clean if accessible
• Check drain pan and drain line
• Pour bleach/water mix down drain to prevent clogs

Blower Components

• Inspect blower wheel for dirt
• Check belt tension (belt-drive systems)
• Lubricate motor if applicable
• Verify proper amp draw

Electrical System

• Test capacitor(s) and record values
• Inspect contactor contacts
• Check all wire connections for tightness
• Measure voltage and amperage
• Test thermostat operation and calibration

Refrigerant System

• Measure superheat and subcooling
• Document pressures for future reference
• Check for obvious leak signs
• Verify proper operation in cooling mode