MovinCool Classic 40 Service Manual - Manual (Page 43)

Repair Section
43
6. TROUBLESHOOTING
6.1 Troubleshooting
• Before troubleshooting the system, the following inspection should be performed.
(1) Inspection of power source voltage
• Check the voltage of the power source.
- Three-phase 220 V (60 Hz)
• Check the phase sequence of the power source.
< NOTE >
If the phase sequence is reversed, control panel display turns off. In this case, exchange any two
wires out of the three wires to correct the phase sequence.
• Check the operation and condition of the fuse or circuit breaker in the power source.
(2) Inspection of air filters
• Remove the air filters and check the element. If the element is dirty, wash it as described in the
OPERATION MANUAL supplied with the unit.