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 190-21 — Right Rear Drive Motor — Fault
Message on the display: Right Rear Drive Motor — Fault
Code 190-21 occurs in machines: Genie Z-60 DC, S-60 DC, Z-33/18 DC.
blocking fault
The Genie display shows code 190-21 with the message “Right Rear Drive Motor — 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: Brake set Main contactor open No drive functions
Possible causes
- Stalled motor Motor encoder failure Bad crimps or faulty wiring Problems with power supply for the motor encoder
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
· Verify brakes release · Check encoder wiring · Confirm motor rotates freely
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 190-21 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.
Genie service · Genie parts · All Genie codes of this system
Neighbouring Genie codes
- 189-26Lift Pump Motor — RESISTANCT TOO LOW
- 190-12AC R MOTOR _ _ AC Motor Right Side — VALUE TOO HIGH
- 190-15AC R MOTOR _ _ AC Motor Right Side — VALUE TOO LOW
- 190-25Right Rear Drive Motor — Value too high
- 191-12AC L MOTOR _ _ AC Motor Left Side — VALUE TOO HIGH
- 191-15AC L MOTOR _ _ AC Motor Left Side — VALUE TOO LOW