Haulotte Optimum 8 (Optimum 1931 E): electric scissor lift, newer generation
Haulotte error code F12.02 — E2P Read/Write Error Change calc.
Message on the display: E2P Read/Write Error Change calc.
Code F12.02 occurs in machines: Haulotte OPTIMUM 8, OPTIMUM 1931 E.
blocking fault
[case 1] EEPROM failure status error. [case 2] EEPROM failure stack full. [case 4] COMBIACX: Wrong slip profile parameters or EEPROM damage. Perform a CLEAR EEPROM. If problem persists, replace the controller. [case 8] COMBIACX: Software or hardware error has been detected, default parameters are applied. Execute a CLEAR EEPROM operation. Cycle power to clear the fault : If the alarm disappears, the previously stored parameters will have been replaced by the default parameters. If the fault is not cleared, replace the controller. [case 16] ACEX: Wrong slip profile parameters or EEPROM damage. Perform a CLEAR EEPROM. If problem persists, replace the controller. [case 32] ACEX: Software or hardware error has been detected, default parameters are applied. Execute a CLEAR EEPROM operation. Cycle power to clear the fault : If the alarm disappears, the previously stored parameters will have been replaced by the default parameters. If the fault is not cleared, replace the controller. [case 64] Problem reading EEPROM at start-up. Restart machine.
Description from the Haulotte service manual, in the original wording.
Possible causes
The manual does not list the causes for this code: the service technician establishes them during diagnosis of the machine.
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 F12.02 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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