27
LOCKED MOTOR ERROR
Is displayed?
Check the connectors at the
main PCB and the main
motor. Are the connectors
loose or disconnected?
Main PCB connectors RD3
and NA4
Motor connectors to stator and
hall sensor
Reconnect
the connector.
(connector /
wire / motor )
Replace
the ROTOR.
Yes
Yes
Motor Drive
Is rotor magnet cracked?
Hall sensor
Motor Drive Hall Sensor
- part of wire
- part of motor
Motor
Yes
Yes
Yes
Magnet
Replace
the STATOR.
Check the resistance of the
stator winding from the main
PCB connector RD3. Is the
resistance between each
pair or wires between 5 and
15 ? (Measure pins 1-2, 1-3
and 2-3.)
No
Replace
the Hall
sensor.
Is hall sensor out of
order?
(Refer to 9-3
Stator assembly/Hall
sensor.)
Yes
No
Replace the
MAIN PWB
ASSEMBLY.
Check the IPM in the
controller.
No
Summary of Contents for 796.405190
Page 2: ...P No MFL30599151 ...
Page 10: ...9 ...
Page 12: ...11 5 OPERATION 5 1 CONTROL PANEL FEATURES 4051 9 ...
Page 23: ...22 8 3 TROUBLESHOOTING SUMMARY CIRCUIT DIAGRAM ...
Page 24: ...23 ...
Page 43: ...42 9 4 PUMP MOTOR ASSEMBLY ...
Page 44: ...43 9 5 INLET VALVE ASSEMBLY ...
Page 45: ...44 9 6 HEATER ASSEMBLY ...
Page 46: ...45 9 7 THERMISTOR ASSEMBLY ...