Danfoss VZH052 Manual page 46

Troubleshooting
yes
CD warning
CD switches
to Alarm
VZH blocked
VZH to be
replaced
Check oil level
Piping check
oil return
Reset & Start
Commercial Compressors
Check alarm #
(Continue)
#14
Earth Fault
Output side
Commercial Compressors
46
AB237586440343en-000601
VZH Compressor
not working
Power output
no
from CDS303
drive ?
Check alarm #
#12
Torque limit
#16 #30,31,32
Short circuit
Output side
Check motor
cable
Check VZH
Motor resistance
and isolation
Correct
the fault
Mains shut-off
before
checking !
Reset &
start
Over current
Check VZH + CDS303
compatibility
Replace
relevant part
Motor phase
missing
Setting Error(s)
Come back to
factory settings
#13
Check motor current
&Settings
Control Comp
Working load/map
Mains Shut off
& reset
March,
#38
Internal fault
Incompatibility
Between
Software &
Additional option
Contact your
Local Danfoss
March,
2014| 1
2014| 2