!
Revision!1.1!+!Dec!5,13!
57
Error 57 is caused by an
Open Circuit detected from
the Drive Motor on the MCB
(ONLY found on units
manufactured
AFTER
Feb,
2013. On units
manufactured before Feb,
2013, this error would show
as an Error 52.)
Check the motor wires (+ & -) are correctly attached to the MCB.
Check if the motor brushes are touching the commutator. Are they worn? If so, clean with fine
sandpaper and reinsert. Test. You may need to replace the motor brushes. Use a 9V battery to test the
motor. Remove the Drive Belt that is connected to the Drive Motor Pulley and place the motor wires on
the battery terminals, the motor should spin. The motor will not spin if you have not removed the Drive
Belt.
Check the resistance of the motor by using a Multimeter. Place one pin in each motor wire connector.
You should get a reading between 1 & 2 OHMS. If you get an extremely high reading on the Multimeter
or the letters “OL” (Overload), there is a problem with the motor.
100
Standard Code for an
unrecognizable Error from
the MCB
No diagnosis possible – Change Motor Control Board
!
