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6.0 SMARTDRIVE PROBLEMS
6.1 If Smartdrive Appears To Have No Power
If the module appears to be dead / no power then check the
following:-
• Is the external mains plug switched on and live?
• Are all plugs connected into the Motor Controller?
• Phase 4 Only. Check that the product is not "asleep". There is a mode in the motor controller where it
can shut down in the event of a transient on the mains. This can be caused by the thermal trip on the
pump, i.e. pump block. If this occurs the module will not restart unless the power is turned off at the
wall for at least 90 seconds. The module is not damaged and there is no need to replace the motor
controller.
• Phase 5 Only. The pump is used as part of the power supply if it
is not connected Smartdrive will appear dead. Check the pump
resistance is 33 ohms. If the pump is open circuit, has the thermal
cut out tripped? This should reset within 15 minutes after tripping
once the pump has cooled down. If the thermal cut out has
tripped, check for a blocked pump.
• Check the resistance from Phase & Neutral to Earth. This will
identify if either the motor wiring harness or the lid switch
harness is shorting to the wrapper.
• Check that the resistance of each of the water valves is 15 ohms
(phase 1-4), 64 ohms (Phase 5).
• Phase 2-4 Only. Check the 15v supply is 11v min, 17v max.
• Phase 1 Only. If fitted with an original Phase 1 Motor Controller
with a fuse, see WM51.
Replace the Motor Controller, if none of the above faults are found.
NB. Ensure product is empty of water when pressure tube is
reconnected. If the product is phase 1 to 4, ensure that the console
area is dried out before fitting replacement motor controller. Always
check the pump resistance before fitting a new Motor Controller.
6.2 If Smartdrive Powers Off mid cycle
• If there is a power interruption while Smartdrive is performing a wash cycle, Smartdrive will continue
when power returns. There are two exceptions.
• Phase 4 Only. Check that the product is not "asleep". There is a mode in the motor controller where
it can shut down in the event of a transient on the mains. This can be caused by the thermal trip on the
pump, i.e. pump block. If this occurs the module will not restart unless the power is turned off at the
wall for at least 90 seconds. The module is not damaged and there is no need to replace the motor
controller.
• Phase 5 Only. The pump is used as part of the power supply, if the thermal trip goes on the pump the
product will power off and the cycle will not restart. The thermal cut-out will normally only trip on the
pump if there is a pump block.