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Fault Code 21 Door Actuator Required Excess Voltage.
Remedy:
(1) Ensure there is no weight placed on the lid of the product
(e.g. clothes basket). If so, remove the weight and retest.
(2) Inspect the installation, making sure that the cabinet sits
evenly on the floor. If excess load is placed on the cabinet, it
can cause the sub-deck assembly to twist.
(3) Inspect the front inside edge of the top deck for any signs of
excessive inwards bowing as this can cause it to catch on
the door grabber, resulting in excess current draw on
activation. The bowing can be caused by a bowed top deck
or by incorrect assembly of the top deck to the cabinet front.
(4) Ensure the user intervention tab is not inhibiting door
grabber movement.
(5) Check that the actuator linkage is located correctly. There
must be no gap between the linkage and the plastic
moulding.
(6) Check that the actuator housing is in place, and that the four
retaining lugs are correctly located. Early models may have
aluminium tape holding the housing in place. If so, ensure
that the tape is replaced when the housing is refitted.
(7) Remove the actuator housing and look for obvious signs of
things that are out of position (can the worm drive be rotated
freely both backwards and forwards by hand, is the actuator
motor in place?)
(8) Replace the faulty door actuator mechanism.
(9) Replace the door grabber, linkage and housings.
(10) Replace the sensor module.