Mitsubishi Forklift FGC30N Warning Lights and Symbols (Meaning and Fixes)

The Mitsubishi Forklift FGC30N is a robust LPG-powered forklift designed for demanding warehouse and industrial environments. Its instrument cluster provides essential real-time feedback to operators, ensuring safe and efficient operation tailored to this specific model's systems.

How to read the colors: Red lights on the FGC30N require immediate attention and may indicate a safety or mechanical issue. Amber lights alert the operator to conditions that need checking soon, while green or blue lights typically confirm normal operation or active features.

Mitsubishi Forklift FGC30N Warning Light Symbols

SymbolNameColorWhat it meansWhat to do
Master Warning (Stop)REDA critical system failure has been detected that could lead to severe damage or unsafe operation of the FGC30N.Stop the forklift immediately and investigate the cause before resuming work.
Master CautionAMBERA non-critical fault or warning has been detected by the FGC30N's onboard diagnostics.Check the display for further information and address the indicated issue soon.
Check Engine (MIL)AMBERThe engine control module has detected an emissions or performance issue specific to the LPG system.Schedule service to diagnose the engine system; continued use may reduce performance.
Engine Oil PressureREDEngine oil pressure has dropped below safe levels, risking severe engine damage on your FGC30N.Shut down the engine immediately and check oil level and leaks.
Battery / ChargingREDThe alternator is not charging the battery, risking electrical system shutdown.Inspect the battery terminals and alternator belt before restarting.
Coolant TemperatureREDThe engine coolant temperature has exceeded safe operating range for the FGC30N.Turn off the engine and allow it to cool; check coolant level and radiator.
Brake SystemREDA malfunction has been detected in the primary brake circuit, compromising stopping ability.Do not operate the forklift until brakes are inspected and repaired.
PParking BrakeREDThe parking brake is applied or not fully released while the FGC30N is in use.Release the parking brake fully before driving.
Low FuelAMBERThe LPG fuel tank is nearly empty, which may soon interrupt operation.Refuel the LPG tank at the next safe opportunity.
Service / Hour MeterAMBERThe forklift is due for scheduled maintenance based on engine hours.Arrange for service according to the maintenance schedule.
Fasten Seat BeltAMBERThe operator seat belt is not fastened, which is a safety violation.Secure the seat belt before operating the forklift.
Hydraulic OilAMBERThe hydraulic oil level or pressure is low, affecting lift and tilt functions.Check hydraulic fluid level and top up if needed.
Air FilterAMBERThe engine air filter is clogged, which may reduce engine efficiency.Inspect and clean or replace the air filter.
Fuel Filter / Water SeparatorAMBERThe fuel filter is restricted or water has accumulated, risking engine issues.Drain the water separator and replace the filter as needed.
Work LightsGREENThe work lights are switched on to illuminate the forklift's operating area.No action needed unless lights are not required.
Beacon / Rotating LightAMBERThe rotating beacon is active, indicating the forklift is in operation.No action needed; ensure beacon is functioning for safety.
Overload / CapacityREDThe load weight exceeds the rated capacity for the FGC30N's mast.Lower the load immediately and reduce to within capacity limits.

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

Most Important Warning Lights

Engine Oil Pressure

Common causes

  • Low oil level
  • Oil pump failure
  • Oil filter blockage

What to do

Immediately shut down the FGC30N, check and top up oil if low, and inspect for leaks or a faulty oil pump. Replace the oil filter if clogged.

Coolant Temperature

Common causes

  • Low coolant level
  • Radiator blockage
  • Thermostat failure

What to do

Turn off the engine, let it cool, then check coolant level and radiator for obstructions. Replace the thermostat if necessary.

Brake System

Common causes

  • Brake fluid leak
  • Worn brake pads
  • Hydraulic system fault

What to do

Stop using the forklift until the brake system is inspected; refill brake fluid, replace worn parts, and repair hydraulic faults as required.

Overload / Capacity

Common causes

  • Attempting to lift excessive weight
  • Incorrect load positioning
  • Load shift during operation

What to do

Lower the load immediately, verify weight and positioning, and only lift within the FGC30N's rated capacity to prevent tipping.

Frequently Asked Questions

What should I do if the Check Engine light comes on during operation?

Continue to operate only if performance is unaffected, but arrange for service soon to diagnose and resolve the issue.

How do I reset the Service/Hour Meter indicator after maintenance?

Follow the procedure in the FGC30N's service manual, typically involving a button sequence on the instrument panel.

Is it safe to drive with the Hydraulic Oil light on?

No, low hydraulic oil can impair lifting and steering; check and refill the hydraulic reservoir before using the forklift.

Why does the Fasten Seat Belt light stay on even when buckled?

The seat switch or belt sensor may be faulty; inspect the buckle and wiring for issues.

What does the Overload/Capacity warning mean?

This indicates the load exceeds the FGC30N's rated lifting capacity; lower the load and verify it is within safe limits.