The Wacker Neuson ET24 is a compact excavator designed for urban job sites, featuring a zero-tail swing design and intuitive controls. Its instrument cluster provides critical machine and engine status indicators to ensure safe and efficient operation.
Wacker Neuson ET24 Warning Light Symbols
| Symbol | Name | Color | What it means | What to do |
|---|---|---|---|---|
| Master Warning (Stop) | RED | This red stop light illuminates for critical faults such as low oil pressure or high coolant temperature on the ET24. | Stop the engine immediately and investigate the underlying cause. | |
| Master Caution | AMBER | An amber caution light on the ET24 indicates a non-critical warning that requires operator attention soon. | Check the display for additional messages and schedule service as needed. | |
| Check Engine (MIL) | AMBER | This light illuminates when the ET24's engine control unit detects a fault in the emission or fuel system. | Reduce load and have the engine diagnosed by a Wacker Neuson dealer. | |
| Engine Oil Pressure | RED | Low oil pressure can cause severe engine damage; on the ET24 it typically appears when oil level is low or the pump fails. | Stop the engine immediately and check oil level; top up or contact service. | |
| Battery / Charging | RED | This red light indicates the ET24's alternator is not charging the battery, often due to a loose belt or failed alternator. | Check alternator belt tension and connections; if persistent, replace alternator. | |
| Coolant Temperature | RED | Engine coolant temperature exceeding safe limits on the ET24 can be caused by low coolant or a blocked radiator. | Stop the engine, let it cool, then check coolant level and radiator for debris. | |
| Hydraulic Oil Temperature | AMBER | High hydraulic oil temperature on the ET24 may indicate overloading or a clogged oil cooler. | Reduce workload and allow hydraulics to cool; clean the oil cooler fins. | |
| Hydraulic System | RED | A red hydraulic system light on the ET24 signals low hydraulic oil level or a pressure fault. | Check hydraulic fluid level and look for leaks; top up with recommended oil. | |
| Glow Plug / Preheat | AMBER | This amber light stays on during the preheat cycle on the ET24; if flashing, it indicates a glow plug fault. | Wait for the light to go out before starting; if flashing, have glow plugs inspected. | |
| Water in Fuel | AMBER | Water contamination detected in the ET24's fuel system can cause injector damage if not drained. | Drain the fuel/water separator immediately; if light persists, replace filter. | |
| Low Fuel | AMBER | The ET24's fuel level is low, which can cause air ingestion in the fuel system if ignored. | Refuel the machine as soon as possible to avoid stalling. | |
| Parking Brake | AMBER | This light on the ET24 indicates the parking brake is engaged; it should go out when released. | Release the parking brake before moving; if it stays on, check the brake switch or system. | |
| Seat Belt | AMBER | The seat belt reminder on the ET24 alerts the operator to fasten the seat belt for safety. | Fasten your seat belt before operating the excavator. | |
| Service / Hour Meter | AMBER | When the ET24 reaches a service interval, this indicator reminds the operator to perform maintenance. | Refer to the operator's manual for the required service and reset the interval. | |
| Work Lights | GREEN | This green light on the ET24 indicates that the work lights are turned on for better visibility. | No action needed; it's a status indicator. | |
| Beacon / Rotating Light | GREEN | The green beacon light on the ET24 shows that the rotating warning light is active for safety. | No action needed; ensure the beacon is working for job site safety. | |
| Swing / Slew Lock | AMBER | When engaged, the swing lock prevents the ET24's upper structure from rotating during transport. | Release the swing lock before operating; re-engage when loading. |
17 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
- Faulty thermostat
- Clogged radiator
What to do
Stop the ET24 immediately and let the engine cool. Check and refill coolant; clean the radiator fins and inspect the thermostat. If the problem persists, contact a Wacker Neuson dealer.
Hydraulic System Failure
Common causes
- Low hydraulic oil level
- Contaminated oil
- Faulty pump or relief valve
What to do
Check hydraulic oil level and top up with recommended fluid. Replace hydraulic filter and inspect for leaks. If pump noise or erratic operation occurs, service the system at an authorized repair center.
Engine Won't Start
Common causes
- Dead battery
- Fuel system air or water
- Glow plug malfunction
What to do
Ensure battery terminals are clean and charged. Prime the fuel system to remove air; drain water separator. If cold, wait for glow plug cycle to complete. If it still fails, consult a technician.
Track Drive Issue
Common causes
- Broken track
- Low hydraulic drive pressure
- Worn sprocket or idler
What to do
Inspect tracks for damage and adjust tension. Check hydraulic oil level and filters. If a track is loose or making noise, tighten or replace components as needed; seek professional repair for major issues.
Electrical System Malfunction
Common causes
- Blown fuse
- Corroded connectors
- Alternator failure
What to do
Check the fuse box and replace any blown fuses. Clean battery and ground connections. Test alternator output; if low, replace the alternator. Ensure all wiring harnesses are secure.
Frequently Asked Questions
What does the red stop light mean on the ET24?
The red stop light demands immediate engine shutdown. Common causes include low oil pressure or high coolant temperature. Stop the machine and refer to the critical list for steps.
How often should I change the hydraulic oil on my ET24?
Wacker Neuson recommends changing hydraulic oil every 1,000 hours or annually, whichever comes first. Use only approved oil to avoid system damage.
My ET24's glow plug light flashes. What should I do?
A flashing glow plug light indicates a fault in the preheat system. You can still start the engine, but have the glow plugs and relay checked by a dealer to prevent hard starts.
Can I operate the ET24 with the water in fuel light on?
It's not recommended; water can damage the injection system. Drain the water separator immediately. If the light stays on, replace the fuel filter.
Why does my ET24 have reduced power and a warning light?
Reduced power often triggers the master caution light. It may be due to an engine fault or hydraulic overload. Reduce load and check display messages; if persists, service the engine.
How do I reset the service hour meter on the ET24?
After performing the required maintenance, press and hold the mode button on the instrument panel for 5 seconds until the service light turns off. Refer to the manual for exact steps.