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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Pressure Cycling Switch

1. Disconnect negative battery cable. Under normal conditions, it is not necessary to discharge system refrigerant during this procedure, as switch unit fitting is supplied with a Schrader valve.
2. Disconnect switch harness connection. Unscrew unit from accumulator.
3. When installing new switch unit, install new oiled O-ring and torque switch to 7.5 ft. lbs. Be careful not to over tighten switch.
4. Reconnect harness and battery cable.