Haigh Quattro Vanguard Enhanced, Руководство пользователя

Страница: 47 / 49

Page 47
Identification of fault codes
Problem Possible causes / resolution
Latch not engaged, display flashes
F3 Contactor circuit fault:
•
Check operation of rear positive break switch.
•
Main contactor fault.
•
Check contactor connections, replace contactor if necessary.
F4 Overload trip:
Motor has tripped out on overload, probably jammed therefore switch off at isolator
and remove the obstruction from the hopper.
F5 Drain Block Stage 1:
Pressure in hopper has built up to trigger the pressure switch but the machine
recovered and continued.
F6 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.
F7 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.
F8
(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.
F9
(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.