Maytag MDB6600AWW, MDB7600AWB Electrical Diagnostics, Resistance Check Points and Values

Page 5

before servicing,

Resistance Check Points and Values

Thermistor (thru harness only with

 

 

 

connector unplugged)***

 

 

 

10K* +/- 3% @ 77oF

 

 

*Vent WM

 

o

 

 

(1.2K**)

2.4K* +/- 6.5% @ 140

F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Disp. WM (2K**)

Water Valve (1.1K**)

(float switch

must be closed)

Drain Motor

(25**)

16023212

WARNING

disconnect to

Pin # 1 2

3 4 5 6 7

8

Pin # 1 2

3 4

Stake Lug 11 10 9

8 7

6

5 4 3

2 1

 

OR

RD RD AQ PU

BK

 

PU

TN AQ

 

WH WH

YL

GY

 

BU

BK

BK

 

RD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BK

 

 

 

J5

 

 

 

 

 

J6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Circuit Board

Electrical Diagnostics

!

dishwasherpowerTo avoid risk of electrical shock, personal injury, or death, unless testing requires power.

1

Use the "Manual Function Test" [as described on the electrical schematic sheet (6 918139)] to

 

 

 

 

 

 

 

check components before opening the door to perform continuity testing or replacing parts.

 

 

 

 

 

 

 

 

To check continuity from ends of power leads to control board through door switches

 

 

(A white plastic latch must be inserted in the latch assembly for this test.)

 

 

 

 

2

> With one ohm meter lead connected to the white (neutral) power lead, you should have continuity at

stake lugs 10 & 11.

 

 

> With one ohm meter lead connected to the black (line) power lead, you should have continuity at

 

stake lugs 3 & 4, and pin # 8 on connector J5.

3

Perform the resistance checks on the component(s) in question at the locations shown on the chart.

 

* Select Models Only.

** Nominal value for ohms of electrical resistance of component only. These values will vary slightly due to the additional resistance of the wire harness. Greater variation can occur if the component is still warm from being energized during testing.

*** A resistor in the control board wired in parallel will result in an approximate reading of 4.0 k ohms with connector J5 plugged in.

Wash Motor (3 - 4**)

Heater

(14.5 - 16.5**)

(High limit t'stat must

be closed)

Always remove power to the unit

before performing any resistance or

continuity checks.

5

May 2004 ©2004 Maytag Services

Image 5
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