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SM830092
12. SERVICE PROCEDURES
2) Checking the Protective Devices
• Disconnect the connector, which consists of P (plug) and S (socket) when you want to check the
protective device.
• Then check continuity among plug’s (and/or socket’s) terminal as in Fig. 20.
• The Protective Device is proved normal if there is a continuity between terminals.
1
Indoor fan motor thermal protector (49FI) . . . . . . Indoor unit
• Disconnect the connector which leads to the indoor fan motor (FMI).
• Check the socket’s terminals.
2
Compressor motor thermal protector . . . . . . Outdoor unit
• Disconnect the wires from terminals of compressor.
• Check the terminals of compressor.
3
Outdoor fan motor thermal protector (49FO) . . . . . . Outdoor unit
• Disconnect both the connector which leads to the outdoor fan motor (FMO).
• Check socket’s terminal.
Ω
socket
Multimeter
0642_X_S
Fig. 20