Haulotte Optimum 8 (Optimum 1931 E): electric scissor lift, newer generation
Haulotte error code F01.10 — Electrical park brake 2
Message on the display: Electrical park brake 2
Code F01.10 occurs in machines: Haulotte OPTIMUM 8, OPTIMUM 1931 E.
blocking fault
[case 1] ACEX: Short circuit detected on electromechanical brake or main contactor output (overcurrent). Main contactor drive coil : Check connections and wiring for interruptions between controller and coil. Motor brake coil : Check connections and wiring for interruptions between controller coil. If the wiring is correct, the problem is in the controller : Replace it. [case 2] ACEX: The driver of the electromechanical brake coil is shorted. The driver circuit is damaged in the controller, which has to be replaced. [case 4] ACEX: The driver of the electromechanical brake is shorted to +Vbatt. The output of the built in Smart Driver, which supplies the positive to the electromechanical brake coil is high when the Tiller and the H and S switch are opened. If, even disconnecting the wire from the connector pin, the output stays at high value, the problem is inside the controller and the Smart Driver is probably shorted. [case 8] ACEX: A short circuit on the power outputs of the controller has been detected. If, even disconnecting the wire from the connector pin, the output stays at high value, the problem is inside the controller : Replace it. [case 16] ACEX: Voltage on PEB present but not expected. If the wiring is correct and no problem is found on the coil, replace the controller. [case 32] ACEX: Internal Smart driver KO and ACEX : internal Smart driver is not KO (if both signals are KO failure F08.10). If, even disconnecting the wire from the connector pin, the output stays at low value, the problem is inside the controller : Replace it.
Description from the Haulotte service manual, in the original wording.
Possible causes
- Check if there is a short or a low impedance pulldown between NEB CNA# and –BATT.
- Check the harness, in order to verify if a positive is connected to the Smart driver output CNB#1.
- Check the EB driver output for a short circuit with +Vbatt.
- Check external wiring.
- Check the driver output for a short circuit with -Vbatt.
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.
What service does
A qualified service technician reads the code with the manufacturer's diagnostic tools, finds the cause, clears the code and carries out a function test.
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 F01.10 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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