Trouble shooting
VTZ Compressor
not working
CD warning
CD Switchs
to alarm
# 12
Torque
limit
# 13
Over
Current
Check VTZ
+ CD302
compatibility
Replace
relevant part
Check motor
Current &
Settings
Control Comp
Working load
Mains shut off
& reset
VTZ blocked
VTZ to be
replaced
Check
oil level
Piping
oil return
Reset &
start
Power
output
from CD302
drive?
Yes
No
Check
Alarm #
# 14
# 15
# 30, 31, 32
# 38
Earth Fault
Output side
Short circuit
Output side
Motor phase
missing
Internal
fault
Check motor
cable
Check VTZ
Motor
Correct
the fault
Mains shut-off
before checking
Reset &
Start
Setting
Error(s)
Come back
to factory
settings
Incompatibility
Between
Software &
Additional option
Contact your
Local Danfoss
Check
Alarm #
(continue)
Instructions
12 | AN000086420674en-000201
© Danfoss | DCS (CC) | 2019.04
