Troubleshooting
Service Manual
206
Troubleshooting procedure
SMGB0066 rev.0 - 12/2009
Alarm code
description
Activation of protection for inverter instantaneous over current (2)
• The alarm code is displayed on the PCB´s display.
• The compressor stops and restarts automatically in 3 minutes.
• The alarm appears after 6 retries during 30 minutes.
– This alarm code is displayed when the compressor current is higher than the set value.
retry code: P-17
Restart the
operation. Does it
trip immediately?
Check ISPM
or Dip-IPM?
Turn off power,
disconnect U,V,W from
compressor terminals and
restart. Does the protecting
function activate?
Check compressor
Check power supply
and wiring capacity.
Check compressor
Replace ISPM or Dip-
IPM
Yes
No
No
No
Yes
No
Check ISPM
Yes
No
Check power supply.
Is the current value which
activating, more than
setting value (70.5A)?
Is there any
factor which
instantaneous
voltage drop
happened?
Is the input current of
each phase almost same
in all 3 phase?
No
(Trip after while)
No
Yes
Check power supply
and wiring capacity
No
Yes
Replace ISPM or Dip-
IPM
Is the power supply
voltage higher than 170V
during operation?
Is the power supply
voltage higher than
170V during operation,
even if the other
appliance starts?
No
Yes
Is the power supply
voltage 230V±10% ?
Yes
(Trip
immediately)
No
(Trip happen
sometimes)
caution
Electrical hazard. Risk of electrical shock. Before checking and replacing the inverter parts perform the high
-
voltage discharge procedure by referring to section "Checking procedure for main parts".
