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TROUBLESHOOTING - STANDARD ECU
LCD Display References
Meaning
LCD MSG
Error Messages
ERR AC
Indicates that the 24VAC supply to the VFlex Board is too low from the
115/230 power supply.
LOW
ERR AC
Indicates that the 24VAC supply to the VFlex Board is too high from the
115/230 power supply.
HIGH
ERR AC
Indicates that there is no 24VAC supply detected to the VFlex Board from
the 115/230 power supply.
NO AC
ERR CHRG
Potential problem with the charging voltage from the Control Board.
HIGH
ERR CHRG
a) 4 Amp Fuse is blown, or;
b) There is a problem with the batteries or the Control Board.
CHECK 4A
ERR BAT
The voltage from the batteries is low.
LOW
ERR FUSE
15 Amp motor fuse is blown on the Primary or Single Control Board.
15 AMP
ERR EMI
No EMI board detected.
NO EMI
ERR EMI
4 Amp main fuse is blown on EMI Board.
NO FUSE
ERR EMI
There is no AC voltage detected to or at the EMI Board.
NO AC
ERR EMI
There is a problem with the communication between the EMI Board and the
VFlex Board.
Unknown
ERR EMI
Lightning strike protection at the EMI Board has been damaged.
PROTECT
ERR FUSE
15 Amp motor fuse is blown on the Secondary Module.
15A
S
ERR REFV
One, or more, of the internal reference voltages are incorrect.
WRONG
ERR SENS
There is a problem with the required monitored sensor(s) connected
to the "UL" and/or "Re-Open" input terminals (pg 6-7, 22).
UL
RO
ERRLIMIT
There is a problem with the Limit Switches or Wires.
OPN+CLS
4 0
VIKING TECHNICAL SUPPORT 1.800.908.0884
Page 41
TS Ref #s
1, 3, 19
1, 3, 19
1, 2, 4,
19
1, ?
18, ?
1, 2, 3,
4, 18
7, 11, 12
15
2
1, 4
15
?
7, 11, 12
?
20
22
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