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Genie GS-1930 Fault Codes – Complete Diagnostic Guide

If your Genie GS-1930 scissor lift is displaying a fault code, this guide provides the complete list of Operational Indicator Codes (OIC), Diagnostic Trouble Codes (DTC), and Battery Charger Error Codes from the official Genie service manuals.

Fault codes on the GS-1930 are designed to protect the machine by disabling lift, drive, or all functions when a fault condition is detected. Identifying the exact code is the first step in diagnosing the issue and restoring normal operation.

This page includes:

  • Operational status indicator codes
  • Hardware and coil fault codes (H-series)
  • Power circuit fault codes (P-series)
  • Sensor and overload fault codes (F-series)
  • Communication fault codes (C-series)
  • Battery charger error codes
  • Serial number applicability notes

Whether your GS-1930 won’t lift, won’t drive, won’t charge, or displays a specific error message, this guide will help you understand what the code means and which components may need inspection or replacement.

Need help identifying your fault code?

Call or text our parts team at (866) 823-8688 with your model and serial number.

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How to Read Genie GS-1930 Fault Codes

The Genie GS-1930 uses multiple types of fault and status codes to communicate machine conditions. Understanding the category of the code helps narrow down the root cause quickly.


Operational Indicator Codes (OIC)

These are status messages rather than electrical failures. They typically indicate:

  • Off-level condition (LL)
  • Platform overload (OL)
  • Chassis control mode (CH)
  • Brake release (br)
  • Pothole deployment issues (nd)

OIC codes often disable lift or drive functions until the safety condition is corrected.

Diagnostic Trouble Codes (DTC)

Diagnostic Trouble Codes identify specific electrical, hydraulic, or communication faults. These are grouped by letter prefixes:

  • H Codes – Coil or hardware circuit faults
  • P Codes – Power supply or voltage faults
  • U Codes – Switch faults
  • F Codes – Sensor faults (overload, height, tilt)
  • C Codes – Communication or controller faults

DTCs typically indicate:

  • Short circuit to battery positive or negative
  • Open circuit in solenoid coil
  • Failed sensor
  • CAN communication issue
  • Controller mismatch

Depending on severity, the machine may:

  • Disable lift only
  • Disable drive only
  • Allow platform down only
  • Disable all functions

Charger Error Codes

The onboard 24V battery charger uses separate error codes such as:

  • E-0-0-1 (High battery voltage)
  • E-0-2-9 (CAN bus error)
  • F-0-0-3 (Internal charger fault)

Charger codes typically indicate:

  • Battery voltage outside normal range
  • Temperature sensor fault
  • Reverse polarity
  • AC power instability
  • Internal charger failure

Serial Number Differences

Early and late GS-1930 models may use different control modules and software revisions. Some H-series and P-series codes only apply to later serial ranges.

Always confirm your machine serial number before ordering parts or replacing control components.

If your machine is not displaying a code but simply will not operate, visit:

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Complete Genie GS-1930 Scissor Lift Fault Code List

Below is the full list of Operational Indicator Codes (OIC), Diagnostic Trouble Codes (H, P, U, F, C series), and Battery Charger Error Codes used on Genie GS-1930 models. Codes are grouped by system type for easier diagnosis.

LL – Off-Level

Machine is on a slope exceeding the allowable limit while elevated.

Effect: Drive and lift functions disabled.

Common Cause: Tilt sensor detects excessive angle.

OL – Overload Cutout

Platform load exceeds rated capacity.

Effect: All functions disabled.

Common Cause: Pressure transducer detects excessive lift pressure.

Common Related Part: 1311101GT – Pressure Transducer

nd – No Drive

Pothole guards failed to deploy or pothole limit switch fault.

Effect: Drive function disabled.

Common Related Parts:

  • Pothole limit switches
  • 96839GT – Pothole Pusher Assembly

CH – Chassis Mode

Machine is being operated from ground controls.

br – Brake Release

Manual brake release valve engaged.

ObS – Obstruction

Lift Guard contact alarm activated.

H-series codes indicate coil or hardware circuit faults.

P-series codes indicate power supply or voltage faults.

H001 / H002 / H003 – Platform Up Coil Fault

Short circuit or open circuit detected in lift coil circuit.

Effect: Platform lift inhibited.

Likely Causes:

  • Failed lift solenoid coil
  • Damaged harness
  • Controller fault

H013 – Drive Forward Coil Fault

Short circuit detected in drive forward circuit.

H019 / H020 – Drive Reverse Fault

Drive reverse circuit open or shorted.

H030 – Steer Left Coil Fault

Steer circuit short to battery positive.

H070 / H072 – Motor Controller Throttle Fault

Short circuit detected in motor controller throttle circuit.

Likely Related Parts:

  • Motor Controller
  • GCON ECM
  • Harness

H104 – Relief Valve Coil Fault (Late Serial)

Relief valve circuit open.

Applies to later serial ranges only.

P023 – Pump Motor Voltage Not OK (Late Serial)

Pump motor voltage outside expected range.

P025 – Pump Motor Current Feedback Fault

Drive controller pump cable open or short.

P059 – Motor RF Phase Open

Right front drive motor open circuit detected.

F008 – Overload Transducer Fault

Short circuit detected in overload pressure sensor.

Effect: All functions inhibited.

Common Related Part: 1311101GT – Pressure Transducer

F003 – Down Limit Switch Fault

Short circuit detected in down limit switch.

F005 – Pothole Switch Fault

Pothole limit switch shorted.

F010 – Platform Height Sensor Fault

Height sensor short circuit detected.

F129 – Tilt Sensor Fault

Internal mismatch detected in Universal Tilt Sensor (UTS).

C021 – PCON Not Detected

CAN communication failure between platform and ground control.

Likely Causes:

  • Coil cord failure
  • PCON unplugged
  • CAN wiring issue

Common Related Part:

235464GT – Coil Cord Kit

C025 – Platform Overload Not Calibrated

Overload system requires calibration.

C053 – PCON-GCON Software Mismatch

Control modules running incompatible software revisions.

C055 – DCON ECM Fault (Late Serial)

Drive controller hardware failure detected.

E-0-0-1 – High Battery Voltage

Battery voltage too high to begin charging.

E-0-1-2 – Reverse Polarity

Battery connected incorrectly.

E-0-2-3 – High AC Voltage

Incoming AC supply too high.

E-0-2-5 – Low AC Voltage Oscillation

Unstable AC source (undersized generator).

E-0-2-9 – CAN Bus Error

Charger cannot communicate on CAN network.

F-0-0-3 – Internal Charger Fault

Charger internal PFC fault.

Most Common Genie GS-1930 Fault Code Repairs

While the GS-1930 fault code system can display dozens of codes, most service calls are resolved by inspecting and replacing a small group of commonly failed components.Below are the most frequently replaced parts related to lift, drive, overload, communication, and charging faults.

  • Pressure Transducer (Overload Faults)

    Faults such as:
    F008 – Overload Transducer Fault
    OL – Overload Cutout

    Often indicate a failed or shorted pressure transducer.

    Common Part:
    1311101GT – Pressure Transducer

    Symptoms:
    Machine will not lift
    Continuous overload display
    Functions disabled

  • Coil Cord / PCON Communication Faults

    Faults such as:
    C021 – PCON Not Detected
    C053 – Software Mismatch
    Intermittent drive/lift disable

    Are often caused by damaged coil cord or communication wiring.

    Common Part:
    235464GT – Coil Cord Kit

    Symptoms:
    Display resets
    No platform response
    CAN communication errors

  • Motor Controller & Drive Faults

    Faults such as:
    H070 / H072 – Throttle Fault
    P023 – Pump Motor Voltage Not OK
    P059 – Drive Motor Phase Open

    May indicate motor controller or drive motor issues.

    Common Parts:
    823408GT – Motor Controller
    1257840GT – Motor Controller (360A version)

  • Limit Switch & Pothole Faults

    Faults such as:
    nd – No Drive
    F003 – Down Limit Fault
    F005 – Pothole Switch Fault

    Often result from failed limit switches or pothole actuator components.

    Common Related Parts:
    Limit switch assemblies
    96839GT – Pothole Pusher Assembly

  • Charging & Power Protection Faults

    Faults such as:

    E-0-0-1 – High Battery Voltage
    E-0-2-9 – CAN Bus Error
    Intermittent power loss

    Frequently relate to:
    40833GT – 275A Main Fuse
    Onboard charger
    Battery cable assembly

We can help solve your Genie GS-1930 fault codes.

Call or Text (866) 823-8688

Please have your serial number and displayed fault code ready.

Diagnosing fault codes on a Genie GS-1930 scissor lift can involve electrical circuits, hydraulic components, overload sensors, or controller communication systems. Ordering the wrong part can delay repairs and increase downtime.

Our team operates 500 GS-1930 lifts daily and can help you identify the correct replacement component based on:

  • Your model (GS-1930)
  • Serial number
  • Displayed fault code
  • Machine behavior (won’t lift, won’t drive, won’t charge, etc.)

If you're unsure which part is causing the issue, contact us before ordering.

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