The Volvo CE EC350E is a 35-ton class crawler excavator designed for heavy-duty earthmoving and construction tasks. Its instrument cluster provides operators with real-time alerts and system statuses to ensure optimal performance and safety during demanding operations.
Volvo CE EC350E Warning Light Symbols
| Symbol | Name | Color | What it means | What to do |
|---|---|---|---|---|
| Master Warning (Stop) | RED | A severe fault has been detected in a primary system, such as engine or hydraulics, posing a risk to safe operation on the EC350E. | Safely stop the machine and investigate the fault via the display or contact Volvo service. | |
| Master Caution | AMBER | A non-critical issue has been identified, such as a sensor error or minor system irregularity, which could escalate if ignored. | Check the display for details and schedule maintenance if required. | |
| Check Engine (MIL) | AMBER | The EC350E's engine management system has logged a fault affecting emissions or performance. | Review diagnostic codes and consult the manual or service technician. | |
| Engine Oil Pressure | RED | Engine oil pressure has dropped below safe limits, risking serious engine damage on the EC350E. | Shut down the engine immediately and inspect oil levels and system integrity. | |
| Battery / Charging | RED | The alternator is not charging the battery, or battery voltage is critically low during EC350E operation. | Stop work and check battery terminals and alternator connections. | |
| Coolant Temperature | RED | Engine coolant temperature has exceeded safe operating range, potentially causing engine overheating. | Idle the engine to cool down and inspect coolant level and radiator. | |
| Transmission Temp | AMBER | The EC350E's transmission fluid temperature is higher than normal, which can impact shifting and longevity. | Pause heavy work and allow the system to cool; check for leaks. | |
| Brake System | RED | A malfunction has been detected in the primary brake system, reducing stopping capability. | Cease operation and have brakes inspected by qualified personnel. | |
| ABS | AMBER | The Anti-lock Braking System is not functioning correctly, affecting wheel slip control on the EC350E. | Operate with caution and arrange for ABS diagnostics. | |
| Parking Brake | RED | The parking brake is engaged or not fully released, preventing travel. | Release the parking brake before attempting to move. | |
| Low Fuel | AMBER | The fuel level is low, and continued operation may lead to engine shutdown. | Plan to refuel at the next safe opportunity. | |
| DEF / AdBlue | AMBER | The EC350E's DEF (AdBlue) level is low or there is a fault in the SCR system. | Refill DEF tank and check for leaks or sensor faults. | |
| DPF / Regeneration | AMBER | A regeneration cycle for the diesel particulate filter is required or in progress. | Follow prompts for parked or passive regeneration procedures. | |
| Water in Fuel | AMBER | Water has been detected in the fuel system, risking injector or pump damage. | Drain the water separator and inspect fuel quality. | |
| Hydraulic System | RED | A critical fault or pressure loss has been detected in the EC350E's hydraulic system. | Stop all hydraulic functions and check fluid levels and filters. | |
| Hydraulic Oil | AMBER | Hydraulic oil level or quality is below recommended standards for the EC350E. | Top up hydraulic oil and replace filters as needed. | |
| Engine Oil Temperature | AMBER | Engine oil temperature is elevated, which can reduce lubrication efficiency. | Reduce engine load and monitor temperature closely. | |
| Air Filter | AMBER | The air filter is clogged, restricting airflow to the engine. | Inspect and clean or replace the air filter. | |
| Fuel Filter / Water Separator | AMBER | The fuel filter requires replacement or the water separator needs draining. | Service the filter and drain water as soon as possible. | |
| Service / Hour Meter | AMBER | Scheduled maintenance interval has been reached based on engine hours. | Arrange for service according to the EC350E maintenance schedule. | |
| Work Lights | BLUE | The EC350E's exterior work lights are currently switched on for improved visibility. | No action needed unless lights are not required. | |
| Beacon / Rotating Light | AMBER | The machine's safety beacon is activated, indicating presence on site. | No action needed unless beacon should be off. | |
| Swing / Slew Lock | AMBER | The swing lock is engaged, preventing upper structure rotation. | Disengage swing lock before attempting to rotate the cab. | |
| Overload / Capacity | RED | The EC350E has detected an overload condition, risking structural or hydraulic damage. | Reduce load immediately and re-evaluate lifting operation. | |
| Door Open | AMBER | The cab door is not fully closed, which can compromise operator safety. | Secure all doors before resuming operation. | |
| High Exhaust Temp (HEST) | AMBER | Exhaust temperatures are high, typically during active DPF regeneration. | Keep clear of exhaust outlet and allow regeneration to complete. |
26 symbols shown. Icons follow ISO 2575 dashboard standards; exact graphics vary by model year.
Most Important Warning Lights
Master Warning (Stop)
Common causes
- Critical engine or hydraulic failure
- Loss of main electrical power
- Major brake malfunction
What to do
Immediately stop the EC350E, shut down the engine, and use the display to identify the fault. Contact Volvo service for urgent repairs before restarting.
Engine Oil Pressure
Common causes
- Oil pump failure
- Severe oil leak
- Oil filter blockage
What to do
Switch off the engine at once and inspect for visible leaks or damaged components. Refill oil if low and do not restart until the issue is resolved.
Hydraulic System
Common causes
- Hydraulic fluid loss
- Pump malfunction
- Filter blockage
What to do
Suspend all hydraulic operations, check fluid levels and for leaks, and replace filters if needed. Have the system inspected by a Volvo technician before returning to work.
Overload / Capacity
Common causes
- Exceeding rated lift capacity
- Incorrect attachment use
- Unbalanced load
What to do
Lower the load immediately and reassess the lifting plan. Ensure the load is within the EC350E's specified limits before resuming.
Coolant Temperature
Common causes
- Coolant leak
- Radiator blockage
- Thermostat stuck closed
What to do
Stop the engine, allow it to cool, and inspect coolant level and radiator for obstructions. Top up coolant and clear debris before restarting.
Frequently Asked Questions
Why does the DEF/AdBlue warning keep appearing even after refilling?
On the EC350E, the DEF system may take a few minutes to reset after refilling. If the warning persists, check for sensor faults or system leaks.
What should I do if the DPF regeneration light comes on during work?
Follow the display instructions—either continue working for passive regeneration or park the EC350E and initiate a parked regen as indicated.
How often should I change the hydraulic oil filter?
Refer to the EC350E maintenance schedule, but typically the hydraulic oil filter is changed every 1000 operating hours or sooner if the warning appears.
Can I operate the EC350E if the ABS light is on?
You may continue with caution, but wheel slip control will be reduced. Have the ABS checked at the next service interval.
What causes the air filter warning to activate?
Dusty site conditions can quickly clog the air filter on the EC350E; inspect and clean or replace the filter if the warning is displayed.