Electra DCI 80, Service Manual

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14-5
TROUBLESHOOTING
Revision Y05-02
Service Manual - WNG 50_60_80 DCI
No Fault Name Fault Description Corrective Action
16 DC over voltage DC voltage exceeds its high limit
Check if input voltage higher than
limit (270VAC), if not and the problem
presist, replace controller. If voltage
is high, shut off the power and
recommend the customer to fix the
power supply
17 AC under voltage AC input voltage is lower than limit
Check if input voltage lower than limit
(170VAC), if not and the problem
presist, replace controller. If voltage
is low, recommend the customer to fix
the power supply
18 No communication A No signals in line A Check communication ( 2.4.9)
22
Compressor- Ilegal
Speed
Exceeds speed low limit See # 13
23
System Configuration
Changed Communication lines changed from
last operation
No problem just an announcement
24
System Configuration
Problem
Miss-match between the IDUs
connected to port A,B,C or D, or
the total capacity code of IDUs is
higher than the ODU maximum
capacity code
Change configuration if needed.
25
Heat sink Over
Heating Fault/
Protection
Compressor stopped due to
heatsink protection
Check that the airflow around the
ODU is free and the fan is running
free. Check fan motor ( 2.4.4)
26 Deicing Protection During deicing procedure No action required
27
Compressor Over
Heating Protection Compressor stopped due to over
heat protection
Check if gas is missing in the system
28
System over power
Protection Compressor stopped due to over
power protection
No action required
29 Bad EEPROM EEPROM not operating
Power reset. (Replace Controller just
in case you need EEPROM).
30 Not Configured Cannot start the control
Power reset. Replace Controller if
didn’t help
31 Bad Communication Bad communication lines See # 18-21