Genie Z-30/20N, Z-34/22, Z-45/25 DC: Curtis motor controller
Genie error code 33 — PRECHARGE FAULT
Message on the display: PRECHARGE FAULT
Code 33 occurs in machines: Genie Z-30/20N, Z-45/25J DC, Z-30/20N RJ, Z-34/22, Z-45/25 DC, Z-45/25J, Z-45/25 BE, Z-34/22 BE, Z-34/22N.
blocking fault
Machine will not drive.
Description from the Genie service manual, in the original wording.
Possible causes
- External short between B+ terminal on motor controller and ground OR motor controller is defective.
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
Repair short between B+ terminal on motor controller and ground OR replace motor controller. Note: Short can be on any part of circuit connected to the B+ terminal on the motor controller.
Source: Genie Service Manual Z-30/20N, Z-34/22, Z-45/25 DC, Curtis controller code table.
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 33 not go away?
RK Rental services Genie 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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