Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Compressor HVAC: Testing and Inspection




COOLER COMPRESSOR ASSEMBLY
a. Connect the positive (+) lead from the battery to terminal 3 and the negative (-) lead to the body ground.
b. Check that the magnet clutch energized.
If operation is not as specified, replace the magnet clutch assembly.
c. Measure resistance between terminals 1 and 2.

Standard resistance: 165-205 Ohms at 20 °C (68 °F)

If resistance is not as specified, replace the cooler compressor assembly.