Maytag MAH8700A service manual Board Input Test

Page 9

Troubleshooting Procedures

!WARNING

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

IN

Board Input Test

While in Service Mode, pressing the

 

Spin Only key will begin the Board Input

 

Test. This test turns on a specified output

after a key press. Pressing the Spin Only key again cancels the test. (Display shows “in”).

While in Service Mode follow chart to check respective function.

When the Rotary Cycle Selector knob is set to

Super Wash” and the Rotary Cycle Selector knob is pressed, the door position will be displayed: “0P” if open, “CL” if closed.

When the Rotary Cycle Selector knob is set to “Normal” and the Rotary Cycle Selector knob is pressed, the Lock position will be displayed: “UL” if unlocked, “L0” if locked.

When the Rotary Cycle Selector knob is set to “Whites” and the Rotary Cycle Selector knob is pressed, the High water level will be displayed: 0 if below level, 1 if above level. The High water level is defined as the over flow water level.

When the Rotary Cycle Selector knob is set to “Wrinkle Control” and the Rotary Cycle Selector knob is pressed, the Medium water level will be displayed: —0 if below level, —1 if above level. The Medium water level is defined as the minimum water level needed such that the heater can be turned ‘ON’ (only MAH8700* and MAH9700* models have heaters).

When the Rotary Cycle Selector knob is set to “Colors” and the Rotary Cycle Selector knob is pressed, the Low water level will be displayed: “_0” if below level, “_1” if above level. The Low water level is defined as the reset water level.

When the Rotary Cycle Selector knob is set to

Hand Wash” and the Rotary Cycle Selector knob is pressed, the level of Tub unbalance will be displayed: “UC” if balanced, “U0” if unbalanced. “U0” will be displayed during the time when the machine is correcting for the unbalance; e.g. slowing down to redistribute the load or to get to a lower spin speed. Once the situation has been corrected (i.e. the load has begun tumbling or the lower speed has resulted in an acceptable amount of balance); “UC” will once again be displayed.

When the Delay key is pressed, the water temperature will be displayed in Degrees F (Fahrenheit).

When the Rotary Cycle Selector knob is set to

Delicates” and the Rotary Cycle Selector knob is pressed, the water temperature will be displayed in degrees C (Celsius).

When the Rotary Cycle Selector knob is set to “Super Wash”, the LED lights up. Revolve Rotary Cycle Selector knob clockwise until all LED’s are ‘OFF’, then press Rotary Cycle Selector knob to display frequency reading. “2560” means 25.60 Hz (washer empty).Frequency value drops as water rises.

While performing the Board Input Test in Service Mode, follow this quick reference chart to check respective functions.

Selection

Function

Display

Rotary Cycle

 

 

Selector set to

 

 

Super Wash”.

Door position

0P” or “CL

Press Rotary Cycle

 

 

Selector.

 

 

Rotary Cycle

 

 

Selector set to

 

 

Normal”. Press

Lock state

UL” or “L0

Rotary Cycle

 

 

Selector.

 

 

Rotary Cycle

 

0 if below

Selector set to

High water

Whites”. Press

level. 1 if

level

Rotary Cycle

 

above level.

Selector.

 

 

Rotary Cycle

 

—0if below

Selector set to

Medium water

Wrinkle Control”.

level. —1 if

level

Press Rotary Cycle

above level.

 

Selector.

 

 

Rotary Cycle

 

 

Selector set to

 

_0” if below

Colors”. Press

Low water level

level. “_1” if

Rotary Cycle

 

above level.

Selector.

 

 

Rotary Cycle

 

 

Selector set to

 

UC” if

Hand Wash”.

Tub balance

Balanced. “U0

Press Rotary Cycle

 

if Unbalanced

Selector.

 

 

Press Delay key.

Water

Degrees F

temperature

 

 

Rotary Cycle

 

 

Selector set to

Water

 

Delicates”. Press

Degrees C

temperature

Rotary Cycle

 

 

 

Selector.

 

 

All cycle LEDs are

Water Level

2560” (empty).

Frequency

off, press Rotary

Frequency(Hz)

drops as water

Cycle Selector

 

rises.

 

 

June 2006

9

16026882

©2006 Maytag Services

 

RPL 16026127

Image 9
Contents Front Load Washer Technical Information Illustration Component Test Procedure Results Component Testing ProceduresMems Sensor Motor Machine Control BoardTroubleshooting Procedures Tub Full of Suds Wrong Water TemperatureWet Clothes See Will Not SpinVibration/Walking/Noise Description Diagnostic Display CodeRubber Feet Leaving Marks on Floor Additive Cups Full of WaterService Mode Enter / Exit Service ModeTo exit Service Mode LED/Switch Test Quick Service CycleSwitch Action Quick Spin TestBoard Input Test Board Output Test Selection Component FunctionAccess Other Features Display Diagnostic CodesClear Diagnostic Codes Diagnostic Codes DescriptionExit Service Mode Diag. DescriptionDiag. Description Code Wiring Schematics