Genie XC, HF and J boom lifts (S-60 XC, S-80 XC, S-85 XC, S-80 HF, S-85 HF, S-60 J, S-80 J)
Genie error code 99-11 — Primary Boom Extend / Retract Flow Coil — Shorted to supply voltage
Message on the display: Primary Boom Extend / Retract Flow Coil — Shorted to supply voltage
Code 99-11 occurs in machines: Genie S-60 XC, S-80 XC, S-85 XC, S-80 HF, S-85 HF, S-60 J, S-80 J.
blocking fault
The Genie display shows code 99-11 with the message “Primary Boom Extend / Retract Flow Coil — Shorted to supply voltage”. 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: Boom Extend and Retract functions will not operate.
Possible causes
- TCON detected that C9PEF circuit is shorted to 12 V or GND.
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
* With a voltmeter, measure Y15. Proper resistance should be between 5 - 60 ohms. Replace Y15 if resistance is outside of those values. * Verify wiring for C9PEF (BK/RD, TCON J4-5) and check for open or short circuits.
Source: Genie Service and Repair Manuals (Part No. 1316494, 1315679, 1288652, 1280490, 1285305, 1285307), 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 99-11 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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