Dealer Technician Training – Week 2 – Air Conditioners and Heat Pumps

Week # 2 - Air Conditioners and Heat Pumps - 4 Days / 10 Hours per day


  • Review the theory of operation of the Dometic and Coleman brands and models of the RV air conditioners and heat pumps.
  • Identify the thermostats and temperature controls used in today’s RVs.
  • Learn to read the wiring diagrams for the current models
  • Identify the various test points for the low voltage controls and the 120 volt AC power voltages of these units.

Hands-On Labs

  • Involves component identification
  • Learn detailed circuit and component testing
  • Learn to troubleshoot:
    • Compressors
    • Fan motors
    • Start and run capacitors
    • PTCR (starter relay)
    • Overload thermal protection switches
    • Freeze control thermistors
    • Reversing valves
    • Control modules and thermostats
    • Manual selector switches

Final Exam will require hands-on troubleshooting and repairing of defective Air Conditioners. Requires a passing Grade of 70% or better to receive credit for this class.

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