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
Refrigerant Pressure Sensor / Switch: Testing and Inspection
Pressure Switch (Trinary Switch)Pressure Switch:
NOTE: Test with A/C off long enough for system pressure to drop. If replacement is required, system must be discharged.
1.
Check for no continuity across fan control switch terminals.
2.
Check that continuity exists across high/low switch terminals.
3.
If not as specified, replace switch.
