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7.1.3 Replace the Cooling Fans
If the internal temperature of the inverter is too high or abnormal
noise is heard, assuming the air vent is not blocked and is clean, it
may be necessary to replace the external fans. Please refer to Figure
7-1 for replacing the cooling fans.
1. Use a No. 2 Phillips head screwdriver to remove the 10 screws
on the fan tray (6 screws on the upper fan tray, and 4 screws on
the lower fan tray).
2. Disconnect the waterproof cable connector from the cooling fan.
3. Use a No. 2 Phillips head screwdriver to remove the screws.
Each fan is attached to the fan tray with 4 screws.
4. Attached the new cooling fans on the fan tray and screw into
place. Fasten the cable on the fan tray with cable ties.
Torque value: 0.8-1N.m (7.1-8.91in-lbs)
5. Install the assembled fan tray back on the inverter and secure
with the original screws.
Torque value: 1.2N.m (10.6in-lbs)
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