Electra WNG 50 DCI Service Manual page 91

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