Component Testing Procedures - Maytag MAH650 series Technical Information

Component Testing Procedures

To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless
testing requires power.
SERIES 10- 44
Machine Control Board INPUT/OUTPUT
Door Lock Solenoid ( Lock or DL)
Hot Water Valve (HWV)
Cold Water Valve (CWV)
Bleach Water Valve ( BWV)
Softener Water Valve (SWV)
High Level Sense (HWL)
Htr
5 N
L1
P4
Description
Bleach water valve output
Cold water valve output
Door Lock output
Door lock switch input
Door switch input
Door unlock output
Drain pump output
Heater
High water level - input
Hot water valve output
L1- machine control board
L1- motor control
Lower water level - input
Motor control tach
Neutral (120 VAC)
Unbalance input
Softener water valve
Thermistor-Heater
Torque PWM
Water valve thermistor
16027402
!
WARNING
Wiring Harness
Connections
Letters in parenthesis designate
markings on the Control Board
3 4
P3
Connector/ Reference
Pin Number To
Connector/
Pin Number
P1(4) P6(2)
P1(3) P6(2)
P1(1) P6(2)
P4(5) P4(4)
P8(4) P6(2)
P8(3) P6(2)
P8(1) P6(2)
P6(3) P8(4)
P1(6) P6(2)
P1(2) P6(2)
P6(1) P6(2)
P8(2) P6(2)
P4(8) P4(4)
P4(2) P4(4)
P6(2)
P3(4) P4(4)
P1(5) P6(2)
P3(1) P3(2)
P4(3) P4(4)
P4(6) P4(7)
2
Voltage Comments
120 VAC
120 VAC 500-1K ohms
120 VAC 60 millisecond pulse
24 VDC
120 VAC
120 VAC 60 millisecond pulse
120 VAC
120 VAC
120 VAC
120 VAC 500 - 1K ohms
120 VAC
120 VAC
24 VDC
24 VDC
Neutral
24 VDC
120 VAC
120 VAC 500 - 40K ohms
24 VDC
(10K-85K ohms)
August 2006
©2006 Maytag Services