25
Model 430
Troubleshooting
Electrical Troubleshooting Guide
Following are the paths of power necessary for
component operation on Torque Control units.
“WASH” Mode
Beater Motor: L1 − beater motor overload switch −
compressor high limit switch − power switch (“WASH”
position) − beater motor contactor coil.
Note: If the beater motor operates in the “WASH”
mode but there are no functions in the “AUTO” mode,
check the fuse on the control board labeled “F1.” (This
fuse is located at the left side of the transformer on the
control board.)
“AUTO” Mode
Beater Motor: L1 − beater motor overload switch −
compressor high limit switch − printed circuit board
assembly (com. and beater) − beater motor contactor
coil.
Compressor: L1 − beater motor overload switch −
compressor high limit switch − power switch ( “AUTO”
position) − the printed circuit board assembly (com.
and N.O. cprsr) − compressor contactor coil.
Following are the paths of power necessary for
component operation on Thermistor Control units.
“WASH” Mode
Beater Motor: L1 − beater motor overload switch −
compressor high limit switch − power switch (“WASH”
position) − beater motor contactor coil.
Note: If the beater motor operates in the “WASH”
mode but there are no functions in the “AUTO” mode,
check the fuse on the control board labeled “F1.” (This
fuse is located at the left side of the transformer on the
control board.)
“AUTO” Mode
Beater Motor: L1 − load side of the compressor
contactor − beater motor contactor coil.
Compressor: L1 − beater motor overload switch −
compressor high limit switch − power switch ( “AUTO”
position) − mix level control − thermistor control −
compressor contactor coil.