The Hyster H155FT is a heavy-duty forklift engineered for demanding material handling tasks in industrial environments. Its operator display panel includes a comprehensive set of indicator lights to monitor critical systems and ensure safe, efficient operation. Understanding these indicators is essential for maintaining uptime and preventing costly damage.
Hyster H155FT Warning Light Symbols
| Symbol | Name | Color | What it means | What to do |
|---|---|---|---|---|
| Master Warning (Stop) | RED | A major system fault has been detected on your H155FT, requiring immediate attention to avoid severe damage. | Safely stop the forklift, shut off the engine, and investigate the source of the warning. | |
| Master Caution | AMBER | A non-critical system issue has been identified on the H155FT that may affect performance if ignored. | Review additional warning indicators and schedule maintenance as soon as possible. | |
| Check Engine (MIL) | AMBER | The engine control module has detected a fault in the H155FT's emissions or fuel system. | Note any changes in performance and arrange for diagnostic service promptly. | |
| Engine Oil Pressure | RED | Engine oil pressure has dropped below safe limits on your H155FT, risking severe engine damage. | Shut down the engine immediately and check oil level and leaks. | |
| Battery / Charging | RED | The charging system on the H155FT is malfunctioning or battery voltage is critically low. | Inspect battery terminals and alternator connections; do not continue operation until resolved. | |
| Coolant Temperature | RED | Engine coolant temperature has exceeded safe operating range in the H155FT. | Stop the forklift, allow the engine to cool, and check coolant levels and radiator. | |
| Transmission Temp | AMBER | Transmission fluid temperature is higher than normal, risking component wear in the H155FT. | Reduce load or idle the forklift to allow cooling; check fluid levels if warning persists. | |
| Brake System | RED | A fault has been detected in the H155FT's brake system, compromising stopping ability. | Cease operation and have the brake system inspected before resuming use. | |
| ABS | AMBER | The anti-lock braking system on the H155FT is not functioning properly. | Braking performance may be reduced; schedule service for the ABS system. | |
| Parking Brake | RED | The parking brake is engaged or not fully released on the H155FT. | Release the parking brake before moving the forklift. | |
| Low Fuel | AMBER | Fuel level in the H155FT is approaching empty, risking unplanned shutdown. | Refuel at the next available opportunity to avoid stalling. | |
| Hydraulic System | AMBER | A hydraulic system issue has been detected, which may affect mast or attachment function on the H155FT. | Inspect hydraulic fluid levels and look for leaks; arrange service if warning persists. | |
| Hydraulic Oil | AMBER | Hydraulic oil temperature or level is outside recommended range in the H155FT. | Check hydraulic oil level and quality; top off or replace as needed. | |
| Engine Oil Temperature | AMBER | Engine oil temperature is running high, which can lead to engine damage in the H155FT. | Reduce engine load and allow to cool; check oil condition. | |
| Air Filter | AMBER | The air filter on the H155FT is restricted or clogged, reducing engine efficiency. | Inspect and clean or replace the air filter. | |
| Fuel Filter / Water Separator | AMBER | Water or debris in the fuel filter is detected, risking injector damage on the H155FT. | Drain the water separator and replace the fuel filter if necessary. | |
| Service / Hour Meter | AMBER | Scheduled maintenance is due based on hours of operation on the H155FT. | Arrange for regular service to maintain warranty and performance. | |
| Work Lights | BLUE | Work lights are switched on for improved visibility during H155FT operation. | No action needed unless lights are not required. | |
| Beacon / Rotating Light | AMBER | The rotating beacon is active, indicating the H155FT is in operation. | No action required unless beacon is malfunctioning. | |
| Overload / Capacity | RED | The load on the H155FT exceeds rated lifting capacity, risking tip-over. | Lower the load immediately and verify weight before lifting again. |
20 symbols shown. Icons follow ISO 2575 dashboard standards; exact graphics vary by model year.
Most Important Warning Lights
Engine Oil Pressure
Common causes
- Low engine oil level
- Oil pump failure
- Blocked oil filter
What to do
Immediately shut down your H155FT, check oil level and for leaks, and replace the oil filter or repair the oil pump as needed.
Coolant Temperature
Common causes
- Low coolant level
- Radiator blockage
- Failed thermostat
What to do
Stop the engine, allow it to cool, check coolant level, and inspect the radiator and thermostat for faults specific to H155FT.
Brake System
Common causes
- Brake fluid leak
- Worn brake pads
- Hydraulic brake failure
What to do
Do not operate the H155FT; inspect for leaks, worn components, and repair or replace faulty brake parts before returning to service.
Overload / Capacity
Common causes
- Attempting to lift excessive weight
- Incorrect load positioning
- Faulty load sensor
What to do
Lower the load, check the rated capacity plate on your H155FT, and ensure proper load placement and sensor function.
Frequently Asked Questions
Why does my H155FT show the hydraulic warning light during cold starts?
Hydraulic fluid can thicken in low temperatures, causing temporary pressure issues; allow the forklift to warm up before operating the hydraulics.
What should I do if the DEF/AdBlue light comes on?
Refill the DEF tank with the correct fluid for the H155FT; running out can severely limit engine performance.
How often should I service the air filter on my H155FT?
Inspect the air filter every 250 hours or sooner in dusty environments and replace if restricted.
Can I continue using the H155FT if the ABS light is on?
While basic braking is still available, anti-lock function is disabled; schedule service to restore full safety features.
What does the hour meter warning mean?
The hour meter light signals that scheduled maintenance is due based on operating hours; follow Hyster's maintenance schedule to avoid breakdowns.