Haulotte Optimum 8 (Optimum 1931 E): electric scissor lift, newer generation
Haulotte error code F16.03 — Motor supply
Message on the display: Motor supply
Code F16.03 occurs in machines: Haulotte OPTIMUM 8, OPTIMUM 1931 E.
blocking fault
[case 1] COMBIACX: During drive, motor output voltage is lower than expected. If no problem is found on the motors, replace the controller. [case 2] COMBIACX: During drive, motor output voltage is higher than expected. If no problem is found on the motors, replace the controller. [case 4] COMBIACX: Motor voltage feedback circuits are damaged. If the wiring is correct, the controller is damaged : Replace it. [case 8] COMBIACX: The motor output voltage is lower than expected, before MC DRIVE switch ON. If the motor connections are correct, replace the controller. [case 16] COMBIACX: The motor output voltage is higher than expected, before MC DRIVE switch ON. If the motor connections are correct, replace the controller. [case 32] ACEX: During drive, motor output voltage is lower than expected. If no problem is found on the motors, replace the controller. [case 64] ACEX: During drive, motor output voltage is higher than expected. If no problem is found on the motors, replace the controller. [case 128] ACEX: Motor voltage feedback circuits are damaged. If the wiring is correct, the controller is damaged : Replace it. [case 256] ACEX: The motor output voltage is lower than expected, before drive main contactor switches ON. If the motor connections are correct, replace the controller. [case 512] ACEX: The motor output voltage is higher than expected, before drive main contactor switches ON. If the motor connections are correct, replace the controller.
Description from the Haulotte service manual, in the original wording.
Possible causes
- Check the motor power wiring and connections.
- Check the motor phases for proper insulation with the chassis.
- Check that MC DRIVE power contact close properly, with a good contact.
- Check the motor phase to phase impedance.
- Check the motor power cables connections.
What you can do
Switch the machine off with the emergency stop and switch it on again. If the code comes back, do not use the machine and call service.
Solution from the manual
Check the motor power wiring and connections. Check the motor phases for proper insulation with the chassis. Check that MC DRIVE power contact close properly, with a good contact. Check the motor power wiring and connections. Check the motor phases for proper insulation with the chassis. Check that MC DRIVE power contact close properly, with a good contact. Check the motor power wiring and connections. Check the motor phase to phase impedance. Check the motor power cables connections. Check the motor phases for proper insulation with the chassis. Check the motor phase to phase impedance. Check the motor power cables connections. Check the motor phases for proper insulation with the chassis. Check the motor power wiring and connections. Check the motor phases for proper insulation with the chassis. Check that MC DRIVE power contact close properly, with a good contact. Check the motor power wiring and connections. Check the motor phases for proper insulation with the chassis. Check that MC DRIVE power contact close properly, with a good contact. Check the motor power wiring and connections. Check the motor phase to phase impedance. Check the motor power cables connections. Check the motor phases for proper insulation with the chassis. Check the motor phase to phase impedance. Check the motor power cables connections. Check the motor phases for proper insulation with the chassis.
Source: Haulotte Maintenance Book Optimum 8 (4001069810), fault codes chapter.
The descriptions are quoted from the manufacturer's service documentation and are for guidance only. Clearing codes, calibrations and repairs are carried out by a qualified service technician according to the manual for the specific serial number. A machine with an active blocking code must not be used until the cause has been removed.
Does code F16.03 not go away?
RK Rental services Haulotte lifts at our workshop or on site at the customer's premises (construction site, factory, warehouse). We read the code, remove the cause and select the parts by serial number.
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