ERROR MESSAGES
Regulator fault code
ATV 12
ATV 312
OCF
bLF
SCF + chiffre
SCF
InFE
PHF ; USF
PHF ; USF
OSF
OSF
InF b ; OHF
OHF
OLF
OLF
SOF ; OLF
SOF ; OLF
LFFI
tnF ; OPF1 ; OPF2 tnF
After discovering the cause of the error message, we recommend that an error reset be made (see below).
Should you encounter any problems, please consult our after-sales service, indicating the serial number
of the casing indicated on the manufacturer's plate..
Reset following errors
Meaning
Current too high
Earth fault
System fault
Voltage too low
Voltage too high
Internal regulator overheat
Motor blocked
Motor overheating
Non-compliant signal from
the pressure switch sensor
Maximum number of restarts
on overheat fault reached
Motor power supply fault
1- Press the Stop/Reset button
2- cLr: confirm acquittal
of a fault
15
Possible causes
- Current too high in the motor cable or short circuit.
- Unsuitable motor or unexpected mechanical problem
Insulation fault in the cables or motor
Internal operating fault
- Reset the fault and restart
- Power supply voltage too low
- (Short) network outage
- Ambient temperature too high
- Regulator cooling fault
Check the motor
- The regulator has detected the motor overheating –
check the motor load
Check the pressure switch sensor and the wiring
- Check the wiring from the motor to the regulator
- Check the condition of the motor wiring
GB