KX-MB1520FX7/KX-MB1520FX8/KX-MB1520FXW/KX-MB1530FX7/KX-MB1530FXW
12.3.6.4. CALL SERVICE 4
"CALL SERVICE 4" means that the FAN does not rotate or the rotation of the FAN cannot be detected normally.
Note:
Refer to FAN Motor Section (P.50) for technical description.
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