The purpose of this course is to introduce the student to the fun­damentals of troubleshooting by utilizing a practical and system­atic approach to locate and repair air-conditioning and heat pump system malfunctions. The student will also have the opportunity to study, in detail, the motors and controls used in today’s air-con­ditioning and heat pump systems. Topics to be covered include basic electric circuits, electrical test meters, motors and controls, diagnosis of electrical and mechanical malfunctions, and special emphasis on wiring diagrams.

Prerequisites: HCR 444 – HVACR Systems I