Groeneveld Twin troubleshooting
Enter the code shown on your Twin display to see what it means and what to check first.
Search by code, fault name or description.
The system did not detect the required pressure in primary Line A.
Check firstInspect Line A, its hose and fittings for visible leaks or damage. Check the grease level and whether air has entered the system.
The system did not detect the required pressure in primary Line B.
Check firstInspect Line B, its hose and fittings for visible leaks or damage. Check the grease level and whether air has entered the system.
Pressure was detected in Line A when the line should have been depressurised.
Check firstInspect the pressure-switch wiring and connections. The pressure switch and 5/2-way valve may require testing.
Pressure was detected in Line B when the line should have been depressurised.
Check firstInspect the pressure-switch wiring and connections. The pressure switch and 5/2-way valve may require testing.
The low-level condition has continued and the pump has stopped.
Check firstRefill using the correct grease and filling method. If the pump ran empty, it may also need to be bled.
The voltage dropped repeatedly while the pump attempted to start.
Check firstCheck the machine battery, earth, fuse, power wiring and connectors.
The control unit detected an electrical problem in the pressure-switch circuit.
Check firstInspect the pressure-switch cable, wiring and connectors. Test the circuit before replacing the switch.
The pump motor is drawing too little or no current.
Check firstCheck for disconnected or damaged motor wiring and loose connections.
The motor drew excessive current and the control unit stopped the cycle.
Check firstCheck for a motor or wiring fault, a blocked pump drive, or grease that is too heavy for the temperature.
Too little or no current was detected through the first valve coil.
Check firstInspect the valve wiring, connection and coil.
Excessive current was detected through the first valve coil.
Check firstCheck for a short circuit or defective valve coil.
Too little or no current was detected through the second valve coil.
Check firstInspect the valve wiring, connection and coil.
Excessive current was detected through the second valve coil.
Check firstCheck for a short circuit or defective valve coil.
The display cannot communicate correctly with the pump control unit.
Check firstCheck that the pump has power, then inspect the fuse, earth and communication connections.
Corrupted parameters were detected during startup and production defaults were restored.
Check firstThe control unit and system configuration need to be checked before the system returns to service.
The internal battery supporting the control unit’s real-time clock is low.
Check firstThe manual specifies replacement of the control unit. Confirm the fault before ordering a replacement.
The control unit detected a clock fault. Logged events may show incorrect dates or times.
Check firstThe manual specifies replacement of the control unit. Confirm the fault before ordering a replacement.
The pump has stopped, but the control unit cannot provide a more specific cause.
Check firstThis may involve an older control unit or a fault outside the standard code list. The system will need testing.
Check the code on the display or contact us for help identifying the fault.
Ask LSL for helpGroeneveld Twin troubleshooting
Enter the code shown on your Twin display to see what it means and what to check first.
Search by code, fault name or description.
The system did not detect the required pressure in primary Line A.
Check firstInspect Line A, its hose and fittings for visible leaks or damage. Check the grease level and whether air has entered the system.
The system did not detect the required pressure in primary Line B.
Check firstInspect Line B, its hose and fittings for visible leaks or damage. Check the grease level and whether air has entered the system.
Pressure was detected in Line A when the line should have been depressurised.
Check firstInspect the pressure-switch wiring and connections. The pressure switch and 5/2-way valve may require testing.
Pressure was detected in Line B when the line should have been depressurised.
Check firstInspect the pressure-switch wiring and connections. The pressure switch and 5/2-way valve may require testing.
The low-level condition has continued and the pump has stopped.
Check firstRefill using the correct grease and filling method. If the pump ran empty, it may also need to be bled.
The voltage dropped repeatedly while the pump attempted to start.
Check firstCheck the machine battery, earth, fuse, power wiring and connectors.
The control unit detected an electrical problem in the pressure-switch circuit.
Check firstInspect the pressure-switch cable, wiring and connectors. Test the circuit before replacing the switch.
The pump motor is drawing too little or no current.
Check firstCheck for disconnected or damaged motor wiring and loose connections.
The motor drew excessive current and the control unit stopped the cycle.
Check firstCheck for a motor or wiring fault, a blocked pump drive, or grease that is too heavy for the temperature.
Too little or no current was detected through the first valve coil.
Check firstInspect the valve wiring, connection and coil.
Excessive current was detected through the first valve coil.
Check firstCheck for a short circuit or defective valve coil.
Too little or no current was detected through the second valve coil.
Check firstInspect the valve wiring, connection and coil.
Excessive current was detected through the second valve coil.
Check firstCheck for a short circuit or defective valve coil.
The display cannot communicate correctly with the pump control unit.
Check firstCheck that the pump has power, then inspect the fuse, earth and communication connections.
Corrupted parameters were detected during startup and production defaults were restored.
Check firstThe control unit and system configuration need to be checked before the system returns to service.
The internal battery supporting the control unit’s real-time clock is low.
Check firstThe manual specifies replacement of the control unit. Confirm the fault before ordering a replacement.
The control unit detected a clock fault. Logged events may show incorrect dates or times.
Check firstThe manual specifies replacement of the control unit. Confirm the fault before ordering a replacement.
The pump has stopped, but the control unit cannot provide a more specific cause.
Check firstThis may involve an older control unit or a fault outside the standard code list. The system will need testing.
Check the code on the display or contact us for help identifying the fault.
Ask LSL for help