Whirlpool MAH9700AW manual Troubleshooting Procedures, 16025909 Rev, Maytag Services, Code, taken

Troubleshooting Procedures

!WARNING

To avoid risk of electrical shock, personal injury or death, disconnect power to unit before servicing, unless testing requires power.

Diag.	Description	Trigger	Action to be
Code			taken
		Tach signal
		exists without
	Motor tach	torque	Displays " bE".
	signal exists	command or
25	without	when not	Replace Machine
	motor	expected	Control Board.
	running.	(Abnormal
		condition
		only).
26-28		Not Used
	Sump	Abnormal	Displays " tE".
		high/low temp	- Loose or pinched
	thermistor
29		or ohm	wires
	failure
		resistance	- Bad sump
	(Optional)
		seen	thermistor
30-33		Not Used
		Machine	Display “E3”
		control is	Evaluate wire
		attempting to	harness for loose or
	Motor Drive	drive the	unhooked
		motor but is	connections. If
	failure
2E		not seeing	machine has
	(Locked, Hall
		any tach	separate motor
	sensor fault)
		response.	control, perform self
		Visual check	diagnostic motor
		shows motor	test. See “Board
		is not moving.	Output Test”
		Machine	Display "Sr".
	System	control does
34		not see relay	Replace machine
	Relay failure
		open when it	control board.
		should.
35		Not Used

Diag.	Description	Trigger	Action to be
Code			taken
36	Heater relay	Heater Relay	Display "Hr".
	failure.	Check signal	Replace Machine
		not sensed.	Control Board.
			Displays
	Motor failure	Over Current	"3E".Check the
3E	(Over	is detected.	motor windings, the
		Motor won't	speed sensor,
	current)
		turn.	wiring connections,
			or Control Board.
40-49		Not Used
	Voltage for	Voltage for	Display
	motor control
91		motor control	"2E".Replace
	bus is over	bus is over	Machine Control
	specified
		limit	Board.
	limit
	Voltage for	Voltage for	Display
92	motor control	motor control	"2E".Replace
	specified	bus is under	Machine Control
	limit	specified limit	Board.

Exit Service Mode

To exit:

1)Press Chime and Extra Rinse keys for 3seconds again, or

2)Press Off, or

3)Unplug the machine. After five (5) minutes of inactivity (user key presses) in Service Mode, the machine will exit the Service Mode and resume normal operations. Pressing the Off key will completely exit Service Mode. If a cycle is running, cancel the cycle. Pressing the Rotary Selector knob while running a test will pause the individual test, while remaining in Service Mode. A power loss during Service Mode will cancel this mode.

20 16025909 Rev. 0 ©2005 Maytag Services