Filter
Top Products
599464
28
F9 Power Supply/Controller Fault
Power supply/controller fault.
The product will disable power supply, log the fault, lock out the user and report
to the user.
Note: The isolation relay will be disabled. Power to the product will need to be
disconnected then reconnected for it to become fully functional again.
PRIMARY ACTION
- Check the previous fault, and if it was F3, F8 or F9, then this F9 is a
consequential fault - fix the previous fault.
- If the fault occurred immediately after power on, check the solenoid coils and
motor stator windings for damage, overheating and correct resistances.
- Check the lid actuators are properly connected.
- Check the controller for damage, signs of overheating or fluid leaking.
IMPORTANT
Check the solenoid coils and motor winding resistances are OK before replacing
a controller.
SECONDARY ACTION
- If the fault is on the top controller and the bottom controller works, check the
top controller chassis and power harnesses are properly connected, are not
damaged and no wires are loose (controller may not be receiving power from
bottom tub).
- If OK, replace the top controller.
- If the fault is on the top controller and the bottom controller does not work,
check the chassis connector on the bottom controller is properly fitted and the
harness is not damaged. Check the connectors on PCB mains filter is
properly fitted.
- Check the heater plate harnesses are properly connected/undamaged.
- If still not OK, replace the bottom controller.
TERTIARY ACTION
- If a single product, and harnesses and resistances are OK, replace the
controller. If replacing the controller does not fix the fault, replace the PCB
mains filter.