Users Manual

Page 47

Identification of fault codes

Problem

Possible causes / resolution

Latch not engaged, display flashes

Contactor circuit fault:

• Check operation of rear positive break switch.

• Main contactor fault.

• Check contactor connections, replace contactor if necessary.

Overload trip:

Motor has tripped out on overload, probably jammed therefore switch off at isolator

and remove the obstruction from the hopper.

Drain Block Stage 1:

Pressure in hopper has built up to trigger the pressure switch but the machine

recovered and continued.

Drain Block Stage 2

Pressure in hopper:

• Blockage in pulveriser exit or drain. Investigate the cause and clear the blockage.

• Incorrect installation, pipe size, or position of waste pipework. 50mm minimum.

• Non return/in line valves not operating correctly. Clean or replace as required.

• Never use a reactive chemical drain block clearer within the machine as it will

damage the seals.

Cistern fails to replenish with water after 150 seconds:

• Lack of water in cistern:

• Check that the mains inlet valve is open.

• Check that there is sufficient water pressure.

• Check and clean the inlet solenoid filter.

• Check solenoid valve is operating. Replace if required.

(Logged Only)

Water level fails to drop after 20 seconds:

• Pump not operating or level sensor problem:

• Check the pump and replace if faulty.

• Check the cistern level switch and replace if faulty.

(Logged Only)

Motor speed sensor failure:

• Caution only, machine reverts to a safe state to ensure that motor has stopped

before the interlock is released.

F10

Hinge Actuator Fault, Lid fails to open or close within 4s.

• Check that nothing is obstructing the lid.

• Check lid open and closed micro switches for continuity.