Mitsubishi Electric 800 Series Instruction Manual page 602

 Replacement procedure of the cooling fan
The replacement interval of the cooling fan used for cooling the parts generating heat such as the main circuit semiconductor
is greatly affected by the surrounding air temperature. When unusual noise and/or vibration are noticed during inspection, the
cooling fan must be replaced immediately.
 Removal (FR-F860-00061 to 02430)
1.
Push the hooks from above and remove the fan cover.
FR-F860-00061, 00090
2.
Disconnect the fan connectors.
3.
Remove the fan.
Fan cover
Fan
FR-F860-00061, 00090
*1 The number of cooling fans differs according to the inverter capacity.
FR-F860-00170 to 00450
Fan cover

Fan connection
connector
FR-F860-00170 to 00450
FR-F860-00680 to 02430
FR-F860-00680 to 02430
7. PRECAUTIONS FOR MAINTENANCE AND INSPECTION
Fan cover
Fan connection
connector
10
601
7.1 Inspection item
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