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)

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Refrigerant Pressure Sensor / Switch: Service and Repair

1. With ignition off, install manifold gauge set. High side reading should be above 33 psi.
2. If reading is above 33 psi., replace pressure switch. If not, inspect refrigerant system for problems.