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





HEATING / AIR CONDITIONING: COMPRESSOR: INSPECTION

1. INSPECT COMPRESSOR WITH MOTOR ASSEMBLY

CAUTION:
* Because the compressor has a high-voltage circuit, wear insulated gloves and pull out the service plug grip to cut off the high-voltage circuit before inspection.
* Do not touch the high-voltage connectors or terminals for 10 minutes after the service plug grip is removed.
NOTICE:
Do not start the engine with the service plug grip removed because it may cause a malfunction.

(a) Disconnect the compressor with motor assembly connector.





(b) Using a megohmmeter, measure the resistance according to the value(s) in the table below.

Standard Resistance:





Text in Illustration





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