Jungheinrich ETV 320 Warning Light Symbols and What They Mean

The Jungheinrich ETV 320 is a high-performance reach truck designed for intensive warehouse operations, featuring a comprehensive instrument cluster to monitor essential systems. Understanding its warning and indicator lights ensures optimal uptime and safety during demanding shifts. This guide details each symbol specific to the ETV 320’s dashboard.

How to read the colors: Red lights signal immediate hazards or system failures requiring prompt shutdown, while amber indicates issues needing attention soon but not critical. Green and blue lights confirm normal system operations or active features.

Jungheinrich ETV 320 Warning Light Symbols

SymbolNameColorWhat it meansWhat to do
Master Warning (Stop)REDA critical fault has been detected in a core system of the ETV 320, such as the drive, lift, or electrical circuit.Immediately park the truck safely and switch off; contact Jungheinrich service.
Master CautionAMBERA non-critical error or system warning has been logged by the ETV 320’s controller.Check the display for fault codes and consult the operator manual.
Battery / ChargingAMBERThe traction battery voltage on the ETV 320 has dropped below the recommended threshold.Plan to recharge the battery soon to avoid automatic lift cut-off.
Battery Discharge (BDI)AMBERBattery discharge indicator shows the ETV 320’s battery is nearing its minimum safe charge.Return to the charging station before further use.
Hydraulic SystemAMBERA hydraulic system fault has been detected, possibly affecting steering or mast functions.Inspect for hydraulic fluid leaks and call maintenance if the warning persists.
Hydraulic OilAMBERHydraulic oil temperature or level is outside the normal range in the ETV 320.Check the oil level and allow the truck to cool if overheated.
Brake SystemREDA malfunction has been detected in the ETV 320’s brake circuit.Stop the vehicle immediately and have the brakes inspected.
PParking BrakeREDThe parking brake is engaged or not fully released on the ETV 320.Release the parking brake before driving.
Service / Hour MeterAMBERScheduled maintenance is due based on the ETV 320’s operating hours.Arrange for service according to the maintenance schedule.
Overload / CapacityREDThe ETV 320 has detected a load above its rated capacity or unsafe mast position.Lower the load to within rated capacity and check load positioning.
Mast / Lift LimitAMBERThe mast has reached its maximum lift height or a limit switch is triggered.Do not attempt to lift further; lower the mast as needed.
Work LightsGREENThe ETV 320’s work lights are currently switched on for better visibility.No action needed unless lights are not required.
Beacon / Rotating LightAMBERThe warning beacon is active to alert others of the ETV 320’s operation.Ensure beacon remains on in areas with pedestrian traffic.
Fasten Seat BeltAMBERThe operator’s seat belt is not fastened while operating the ETV 320.Secure the seat belt before driving.

14 symbols shown. Icons follow ISO 2575 dashboard standards; exact graphics vary by model year.

Most Important Warning Lights

Master Warning (Stop)

Common causes

  • Major electrical system fault
  • Drive or lift motor failure
  • Critical controller error

What to do

Immediately power down the ETV 320 and contact Jungheinrich support for diagnostics and repair.

Brake System

Common causes

  • Brake actuator malfunction
  • Low brake fluid
  • Electronic brake control failure

What to do

Do not continue operation; have a qualified technician inspect and repair the brake system before use.

Overload / Capacity

Common causes

  • Load exceeds rated capacity
  • Incorrect load positioning
  • Mast sensors detecting unsafe lift

What to do

Lower the load immediately and ensure all loads are within the ETV 320’s rated specifications before lifting again.

Hydraulic System

Common causes

  • Hydraulic leak
  • Low hydraulic oil level
  • Pump or valve malfunction

What to do

Inspect for visible leaks, top up hydraulic oil if needed, and schedule service if the warning remains.

Frequently Asked Questions

What should I do if the battery indicator comes on during a shift?

Plan to finish your current task and drive the ETV 320 to the charging station before the battery is fully discharged.

Why does the overload light activate even with a small load?

Check that the load is correctly positioned and not extended beyond the load center; mast sensors may also trigger if the mast is tilted excessively.

How often does the ETV 320 require service?

Service intervals are based on operating hours; refer to the hour meter and follow the Jungheinrich maintenance schedule.

Is it safe to continue working if the hydraulic oil warning is on?

No, you should check the hydraulic oil level and allow the system to cool; persistent warnings require maintenance inspection.

What does it mean if the fasten seat belt light is on?

It means the operator’s seat belt is not engaged; always fasten the belt before operating the ETV 320.