Massey GC GC1705 Warning Lights and Symbols (Meaning and Fixes)

The Massey GC GC1705 is a versatile sub-compact tractor with a clear instrument cluster designed for operator awareness. It includes essential warning lights to monitor engine, hydraulics, and safety systems, helping you maintain peak performance during mowing or light utility work.

How to read the colors: Red lights indicate immediate stop conditions (e.g., low oil pressure), amber lights signal caution or upcoming service needs, and green/blue lights confirm active systems like high beams or glow plugs.

Massey GC GC1705 Warning Light Symbols

SymbolNameColorWhat it meansWhat to do
Glow Plug / PreheatAMBERWhen illuminated, the engine's glow plugs are active to aid cold starting; it should turn off after a few seconds once the engine is warm enough.Wait for the indicator to extinguish before cranking the engine to ensure reliable ignition.
Check EngineAMBERThis signals a fault in the engine management system, such as a sensor issue or emission problem specific to the GC1705's Yanmar diesel.Note any performance changes and schedule a diagnostic scan at your Massey dealer.
Engine Oil PressureREDIndicates critically low oil pressure, which can occur if the oil level is low or the pump fails on your GC1705.Immediately stop the engine and check the oil level with the dipstick; top up if low, otherwise seek service.
Battery / ChargingREDLights when the charging system is not maintaining battery voltage, often due to a loose belt or faulty alternator on your tractor.Check the alternator belt tension and clean battery terminals; if light persists, have the alternator tested.
Coolant TemperatureREDWarns that engine coolant temperature is above normal, potentially from a clogged radiator or low coolant level in the GC1705.Reduce engine load and allow it to cool; check coolant level only when engine is cool, and clean the radiator fins.
PParking BrakeAMBERIlluminates when the parking brake is engaged; a reminder to release before driving to avoid brake drag.Release the parking brake lever fully before moving the tractor.
Low FuelAMBERAlerts that the fuel level is low; the GC1705 holds 11.4 gallons (43 L) and this light helps prevent running out during operation.Refuel with clean diesel at your earliest opportunity to avoid air in the fuel system.
High BeamBLUEConfirms that the headlights are set to high beam for better visibility in dark conditions.Dim when approaching other vehicles to avoid glare.
PTOPTO EngagedAMBERShows that the power take-off is activated, which is typical when using the mid-mount mower deck on your GC1705.Disengage PTO before leaving the seat or performing maintenance.
Work LightsGREENIndicates that the rear or front work lights are turned on for improved visibility during night operations.Switch off when not needed to conserve battery.
Differential LockAMBERLights when the differential lock is engaged, providing equal traction to both rear wheels on the GC1705 for slippery conditions.Disengage when turning to prevent driveline binding.
Hydraulic SystemREDWarns of a fault in the hydraulic system, such as low fluid level or a blocked filter that can affect loader or three-point hitch operation.Stop the tractor and check hydraulic fluid level; if low, add recommended oil; if light stays, inspect for leaks.
Water in FuelAMBERDetects water accumulation in the fuel filter/water separator, which can damage the injection system on your diesel engine.Drain the water separator bowl located near the fuel filter following the owner's manual procedure.
Service / Hour MeterAMBERIlluminates at preset intervals (e.g., every 50 hours) to remind you of scheduled maintenance like oil changes or filter replacements.Perform the required service as listed in your GC1705 maintenance schedule; then reset the indicator.

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

Most Important Warning Lights

Engine Overheating

Common causes

  • Low coolant level
  • Clogged radiator fins with debris
  • Faulty thermostat or water pump

What to do

Immediately reduce engine load and let it idle to cool; after cooling, check coolant and clean radiator. If issue persists, inspect thermostat and pump on your GC1705.

Low Oil Pressure

Common causes

  • Insufficient engine oil level
  • Oil pump failure or worn bearings
  • Clogged oil filter or wrong viscosity

What to do

Stop engine immediately, check oil level and top up with 10W-30 diesel oil if low. If light remains, do not restart; have oil pressure tested by a dealer.

Charging System Failure

Common causes

  • Loose or broken alternator belt
  • Faulty alternator or voltage regulator
  • Corroded battery connections

What to do

Inspect alternator belt tension and battery terminals; tighten or clean as needed. If light persists, test alternator output (should be ~14V) and replace if defective.

Fuel System Issues

Common causes

  • Water in fuel from condensation or contaminated diesel
  • Clogged fuel filter or air in lines
  • Fuel shut-off solenoid malfunction

What to do

Drain water from separator, replace fuel filter, and bleed air from system using the manual pump on your GC1705's fuel lift pump.

Hydraulic System Malfunction

Common causes

  • Low hydraulic fluid level
  • Contaminated fluid or clogged filter
  • Internal leak in pump or cylinders

What to do

Check fluid level and add Massey Permafluid; replace filter if overdue. If operation is weak, inspect for leaks and have system pressure tested.

Frequently Asked Questions

Why does my glow plug light stay on even after the engine starts?

On the GC1705, if the glow plug light remains on after starting, it may indicate a faulty glow plug relay or control module; have it checked to ensure proper cold-start performance.

What does the hydraulic warning light mean when using the loader?

The red hydraulic light on your GC1705 signals low fluid or a restriction; stop using the loader and check the hydraulic oil level in the rear sump.

Can I continue driving with the check engine light on?

You can operate briefly but avoid heavy loads; the light may indicate a sensor fault or minor emission issue. Schedule a diagnostic to prevent potential engine damage.

How do I reset the service indicator after an oil change?

Turn the key to the ON position without starting, then press and hold the hour meter reset button for 3-5 seconds until the light blinks and turns off.

Why does the PTO engaged light flash intermittently?

A flashing PTO light on the GC1705 usually means the PTO switch or clutch solenoid is faulty; check for loose wiring and have it serviced if the PTO does not engage smoothly.

What should I do if the water in fuel light comes on while mowing?

It is safe to finish your mowing, but drain the water separator as soon as possible to prevent injector damage. Refer to the manual for the drain procedure under the left side of the tractor.