20 Point Checklist

  • Check system for proper refrigerant charge
  • Check compressor and fan amps
  • Check and clean condenser fan
  • Check capacitors
  • Check contractor points
  • Brush out electrical cabinet
  • Check all caps and valves for seals and/or proper fit
  • Check thermostat operation and mounting plus damper open/close
  • Check blower amps
  • Check heat strip amps, circuit components, and safeties
  • Check/evaluate evaporator coil for buildup
  • Check blower wheel for buildup
  • Check all electrical connections and wires
  • Change/wash filter
  • Check temperature splits
  • Lubricate all moving parts where applicable
  • Flush and vacuum drain line/pan and evaluate drainage
  • Check float switch operation
  • Clean equipment exterior
  • Check final performance and report necessary improvements
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PLUS

  • Clean vegetation, etc. from outdoor unit
  • Check and clean condenser coil
  • Check crankcase heater
  • Check reversing valve operation
  • Check for excessive vibration
  • Check condenser level
  • Check safety controls where applicable
  • Clean/dust return air grills
  • Treat Air Handler/evap coil/case coil
  • Treat plenum with micro-band and check for leaks
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