DOC. NO. 5956.677.00 P. 27 / 30
Electrolux
EFS - Dishwashing Systems Platform
Electrolux Professional
27 The gear motor inverter has
generated an allarm.
- The inverter or the gear motor
doesn’t work properly. Possible
machine alarms documented on
Possible cause Remedy
1) OCF overcurrent - ramp too short
- inertia or load too high
- mechanical locking
- check the state of the
mechanism.
2) SCF motor short circuit - insulation fault or short-
circuit at the drive output
- check the cables
connecting the drive to the
motor , and the motor
insulation.
3) InF internal fault - internal fault - check the environment
(electromagnetic
compatibility).
- send the drive to be
checked/repaired.
4) CFF configuration fault - The current configuration is
inconsistent
- some parameters in the
inverter have been
- return to factory settings.
5) SOF overspeed - instability or
- driving load too high
- some parameters in the
inverter have been
modified
- return to factory settings.
6) CrF internal fault - load relay control fault or
damaged load resistor
- replace the drive.
7) OHF drive overload - drive temperature too high - check the motor load and
the enviroment.Wait for the
drive to cool down before
restarting.
8) OLF motor overload - triggered by motor current
too high
- check the motor load. Wait
for the drive to cool down
before restarting.
9) OSF overvoltage - line voltage too high
- disturbed line supply
- check the line voltage. The
overvoltage thresold is 415
V on the DC bus.
10) ObF overvoltage during
deceleration
- braking too sudden or
driving load.
- increase the deceleration
time.
11) PHF line phase failure - drive incorrectly supplied
or a fuse blown
- failure of one phase
- unbalanced load
- check the power
connection and the fuses.
- reset.
12) USF undervoltage - line supply too low
- transient voltage dip
- damaged load resistor
- check the voltage and
the voltage parameter.
The undervoltage
threshold is 230 V on the
DC bus.
- replace the drive.
13) ULF Current level above the
overload threshold LOC.
- Check the value of the
parameters LOC and tOL
in the menu FUn
.
- Check the mechanics
(wear, mechanical stops,
lubrication, obstacles, etc.).
14) ULC Current level below the
under-load threshold LUL.
- Check the value of the
parameters LUL and tUL
in the menus FUn.
30
**
The Air gap was not completely
emptied within the max. emptying
time.
- The impeller rotation is wrong.
- The non return valve on the air gap doesn’t work properly.
- The pressure sensor on the air gap doesn’t work properly.
- The air gap air trap is not clean.
31 The wash tank was not completely
filled within the max. filling time.
- The wash tank water supply cock is not open.
- The water load solenoid valve doesn’t work properly.
- The water feed flow is too low.
- The water inlet filter is not clean.
- The pressure sensor on the wash tank doesn’t work properly.
- The wash tank overflow has not been inserted.
- The wash tank drain solenoid valve doesn’t work properly and remains open.
- The pressure sensor on the wash board doesn’t work properly.
- The wash board doesn’t work properly.
32 The pressure sensor on the wash
tank does not work correctly.
- The pressure sensor on the wash board doesn’t work properly.
- The wash board doesn’t work properly.
