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Genie DC and FE electric boom lifts (Z-60 DC, S-60 DC, Z-45 DC, Z-45 FE, Z-33/18 DC)

Genie error code 257-21 — Right Front Drive Motor Temperature — Fault

Message on the display: Right Front Drive Motor Temperature — Fault

Code 257-21 occurs in machines: Genie Z-60 DC.

blocking fault

The Genie display shows code 257-21 with the message “Right Front Drive Motor Temperature — Fault”. It is a blocking fault or a safety-related code: do not use the machine until the cause has been found and removed.

Effect on the machine: No drive functions

Possible causes

  • Motor temperature exceeded maximum rated temperature limit of 293° F / 145° C

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

Allow motor to cool down Check gearbox and motor for damage Check temperature sensor wiring

Source: Genie Service and Repair Manuals (Part No. 1307785, 1299608, 1297714, 1271125, 1268514), Fault Codes section.

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 257-21 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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