Checking The Protective Devices - Sanyo KH2442 / CH2442 Service Manual

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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. IV-18.
• Normality of the protective device can be judged by the following table.
The Protective Device is proved normal if there is a continuity between terminals.
1 1 1 1 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 2 2 2 2
Compressor motor thermal protector . . . . . . Outdoor unit
• Disconnect the wires from terminals of compressor.
• Check the terminals of compressor.
3 3 3 3 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.
socket
Multimeter
0642_X_S
IV - 31
4. Service procedures
Fig. IV-18
Section
1
2
3
4
SM830082 SM830082