AC Parts Diagram and Repair Guide

Functional parts diagram

Physical layout and components vary by model.

• 1. Return-air filter

  Catches dust ahead of the indoor coil.

• 2. Evaporator coil

  Absorbs heat from room air.

• 3. Blower and louvers

  Move cooled air into the room.

• 4. Drain pan and pipe

  Carry condensate away.

• 5. Outdoor condenser and fan

  Release heat outside.

• 6. Compressor

  Moves refrigerant through the circuit.

How symptoms guide inspection

• Weak cooling

  Before calling Check cooling mode and clean the accessible filter according to the manual.

  What we check Inspect airflow, coil condition and refrigerant circuit.

• Indoor drip

  Before calling Note whether water appears during cooling or after shutdown.

  What we check Check drain routing, pan and coil icing.

• Loud outdoor unit

  Before calling Record when the sound starts.

  What we check Inspect fan, mount and compressor operation.

• Unit trips power

  Before calling Stop use and report when it trips.

  What we check Check supply and isolate electrical faults.