Genie S-85 XC FE and S-85 XC E (hybrid and electric drive)
Genie error code 27-21 — Primary boom retract coil — Valve status fault
Message on the display: Primary boom retract coil — Valve status fault
Code 27-21 occurs in machines: Genie S-85 XC FE, S-85 XC E.
blocking fault
The Genie display shows code 27-21 with the message “Primary boom retract coil — Valve status 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: Associated function disabled
Possible causes
- Overload. Output mode error. Power supply to the output too low. Analog diagnostic error.
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
* Check Ohms (~29Ω). * Check for open/short circuit between controller and B- (V08PBR BK/WH).
Source: Genie Service and Repair Manual S-85 XC FE / E (Part No. 1337498), 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 27-21 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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