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6.4.7.
T
HE INVERTER DISPLAY SHOWS
This inverter error message is caused by high voltage problems on the inverter power supply line.
Follow the procedure step by step to correctly diagnose the problem. Take particular care with the
checks highlighted by circled numbers, which are described in detail below:
(1)
Insert the tester probes between terminals L1 and N of the inverter. The measured voltage
should be 220 VAC.
Page 6.18
E15
Does the machine resume
correct operation af ter being
switched of f f or 1 minute?
NO
1
Is the supply v oltage at the
input to the inv erter correct?
NO
2
Is the supply v oltage at the
input to the f ilter correct?
YES
3
Is the supply v oltage at the
output of the f ilter correct?
YES
Check and reinstate cables
SF-1B, SF-4A and SF-4B
SPAZIO FORMA: Service & Maintenance manual - rev. 1.0
E15
YES
Probable high line v oltage.
The machine is OK.
YES
Replace the inv erter
NO
Check and reinstate cable
SF-1A
NO
Replace the f ilter
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