Mitsubishi Forklift FG30N Warning Lights and Symbols (Meaning and Fixes)

The Mitsubishi Forklift FG30N is a robust LPG-powered forklift designed for demanding material handling in warehouses and industrial settings. Its instrument cluster provides operators with vital operational and safety alerts tailored to this model's unique systems and engine configuration.

How to read the colors: Red lights on the FG30N require immediate attention and often signal a critical issue needing a stop. Amber lights indicate caution and should prompt checks or planned maintenance, while green and blue lights show normal operation or active features.

Mitsubishi Forklift FG30N Warning Light Symbols

SymbolNameColorWhat it meansWhat to do
Master Warning (Stop)REDA critical system malfunction has been detected on the FG30N, such as severe engine or hydraulic failure.Stop operation immediately and consult service support.
Master CautionAMBERA non-critical fault or maintenance reminder has occurred, such as a minor sensor error or service interval.Inspect the forklift soon and address any minor issues.
Check Engine (MIL)AMBERThe FG30N's engine management system has detected an electronic or emission-related fault.Schedule diagnostic service to prevent performance loss.
Engine Oil PressureREDOil pressure in the FG30N's engine is dangerously low, risking internal damage.Shut off engine immediately and check oil level and leaks.
Battery / ChargingREDThe alternator is not charging the battery or battery voltage is low in the FG30N.Inspect the charging system and battery connections before resuming work.
Coolant TemperatureREDThe engine coolant temperature has exceeded safe limits on your FG30N.Stop the forklift, allow the engine to cool, and check coolant level.
Brake SystemREDA fault in the FG30N's brake system or critically low brake fluid has been detected.Do not operate; inspect brakes and fluid before use.
ABSABSAMBERThe anti-lock braking system has a fault and may not function as intended on the FG30N.Use caution while braking and arrange for ABS service.
PParking BrakeREDThe parking brake is engaged or not fully released on the FG30N.Release the parking brake before driving.
Low FuelAMBERLPG fuel level is approaching empty in the FG30N's tank.Plan to refuel soon to avoid unexpected downtime.
Seat BeltAMBERThe operator seat belt is not fastened while the FG30N is in use.Buckle the seat belt before operating the forklift.
Hydraulic SystemAMBERA hydraulic system issue such as low fluid or filter clog has been detected on the FG30N.Check hydraulic fluid level and inspect for leaks or filter restrictions.
Hydraulic OilAMBERHydraulic oil level or pressure is below recommended values in your FG30N.Top up hydraulic oil and check for system leaks.
Fuel Filter / Water SeparatorAMBERThe FG30N's fuel filter is clogged or water is detected in the separator.Replace the fuel filter and drain any water accumulation.
Service / Hour MeterAMBERScheduled maintenance is due based on engine hours logged on the FG30N.Arrange for routine service to maintain reliability.
Work LightsBLUEThe FG30N's work lights are switched on for better visibility.No action needed unless lights are not required.
Beacon / Rotating LightAMBERThe safety beacon is active to alert others of FG30N movement.Ensure the beacon is functioning in busy areas.
Overload / CapacityREDThe FG30N is attempting to lift a load above its rated capacity.Lower the load immediately and verify load weight.
Mast / Lift LimitAMBERMast or lift height limit has been reached or a mast-related sensor is triggered on the FG30N.Do not attempt to lift higher; check for obstructions or system faults.

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

Most Important Warning Lights

Engine Oil Pressure

Common causes

  • Oil level too low
  • Oil pump failure
  • Oil filter blockage

What to do

Stop the FG30N immediately, check engine oil level, inspect for leaks, and replace oil filter if needed before restarting.

Coolant Temperature

Common causes

  • Coolant level low
  • Radiator blockage
  • Faulty thermostat

What to do

Turn off the engine, allow it to cool, refill coolant if needed, and inspect radiator and thermostat operation.

Overload / Capacity

Common causes

  • Attempting to lift load above rated capacity
  • Incorrect load center
  • Hydraulic malfunction

What to do

Lower the load, verify the weight and load center, and ensure the FG30N is not being operated beyond its specifications.

Battery / Charging

Common causes

  • Broken alternator belt
  • Faulty alternator
  • Loose battery terminals

What to do

Inspect the alternator belt for damage, check battery terminal tightness, and have the charging system tested.

Brake System

Common causes

  • Low brake fluid
  • Worn brake pads or shoes
  • Brake line leak

What to do

Check brake fluid level, inspect for leaks, and replace worn brake components before resuming use.

Frequently Asked Questions

What should I do if the master warning light appears on my FG30N?

Stop the forklift immediately and contact your service provider, as this indicates a critical fault requiring urgent attention.

Can I keep working if the check engine light is on but the forklift runs normally?

You may continue short-term, but schedule a diagnostic check soon to avoid possible long-term engine or emissions problems.

How often should I check the hydraulic oil level?

Inspect the hydraulic oil level at the start of each shift or daily, as low oil can cause performance and safety issues.

Why does the overload light come on even when I think the load is within limits?

Check the load center and verify the actual weight; uneven or improperly positioned loads can trigger the overload sensor.

What does it mean if the hour meter service light is on?

This means your FG30N has reached a scheduled maintenance interval and should be serviced soon to maintain warranty and performance.