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"How will you know what's wrong with something if you don't know what right is in the first place?"...Jim Johnson.
In this HVAC video training program, Jim follows up on "Deciding Where To Begin" with specific component tests technicians can perform to determine the specific failure what is the cause of general complaints such as "not cooling" or "no heat."
Specific tests covered in this video are:
..Potential relays & start capacitors
..Compressor motor windings
..Multiple speed fan motors & relays
..Gas valve coils
Sale Price $88.77