MDE/MDG6800, MDG5500

Diagnostic Codes

The Diagnostic Codes are identified when the severity level of the abnormality detected is higher and service may be required.

When a problem with the dryer is detected a Diagnostic Code is assigned, and can be displayed. The Control Board will not log multiple same codes per cycle; however, it will log as many Diagnostics as possible for the machine to continue running.

Accessing Diagnostic Codes with 13 Key Membrane Press Air Fluff and Time (^) to enter Service Mode. Press the Wrinkle Release key to access the Diagnostic Codes. Scroll through the Diagnostic Codes by pressing the Temperature (^) key. The first time the key is pressed the newest code will be displayed. Each additional key press shows the next code. Once all the codes have been displayed a “d” is displayed and the process repeats. If there are no Diagnostic Codes available, “00” will be displayed for the Diagnostic Code.

Accessing Diagnostic Codes with 15 Key Membrane Press Air Fluff and Time (+) to enter Service Mode. Press the Wrinkle Release key to access the Diagnostic Codes. Scroll through the Diagnostic Codes by pressing the Temperature (^). The first time the key is pressed the newest code will be displayed. Each additional key press shows the next code. Once all the codes have been displayed a “d” is displayed and the process repeats. If there are no Diagnostic Codes available, “00” will be displayed for the Diagnostic Code.

There will be no multiple occurrences of either a diagnostic code or help code generated in the same cycle reported on the list. But if the same code occurs in repeated cycles, it will be registered.

Clearing Diagnostic Codes

To clear the diagnostic code list press

Air Fluff and Wrinkle Release - 13 Key or

Air Fluff and Wrinkle Release - 15 Key for 3 seconds while in diagnostic mode.

Diagnostic Codes

 

 

Code

Description

Trigger

Action Taken

 

 

1

Dryer Thermistor

The

Check for:

 

 

 

Short Sensed

thermistor

-

Clogged lint

 

 

 

 

resistance is

 

screen.

 

 

 

 

very low,

-

Restricted

 

 

 

 

with a

 

vent system.

 

 

 

 

temperature

Failed thermistor.

 

 

 

 

> 175

 

 

 

 

 

 

degrees.

 

 

1602311016023110

 

Code

Description

Trigger

Action Taken

2

Thermistor Open

The

Check for:

 

 

Sensed

thermistor

-

Low ambient

 

 

 

resistance is

 

temperature in

 

 

 

very high

 

room (Below

 

 

 

 

-

50oF/10oC).

 

 

 

 

Outside vent

 

 

 

 

 

damper is stuck

 

 

 

 

 

open in

 

 

 

 

 

wintertime.

 

 

 

 

Loose or open wire

 

 

 

 

 

terminals

3

Door Circuit

Invalid state

Check for:

 

 

Failure

for more

- Loose or open wire

 

 

 

than 256

terminals in Door

 

 

 

milliseconds

Sense circuit.

4

Possible motor

If either

Check for:

 

 

transistor error

motor

-

Loose

 

 

 

transistor is

 

connections in

 

 

 

seen open or

 

motor circuit.

 

 

 

shorted

-

Run System

 

 

 

during

 

Check Mode

 

 

 

startup

 

and check the

 

 

 

 

 

motor relay

 

 

 

 

-

function.

 

 

 

 

If relay

 

 

 

 

 

functions,

 

 

 

 

 

disregard the

 

 

 

 

 

diagnostic

 

 

 

 

 

code.

 

 

 

 

If relay does not

 

 

 

 

function, replace

 

 

 

 

machine control

 

 

 

 

 

board.

5

Not Used

 

 

 

6

Non Volatile

Problem

 

Disregard

 

 

Memory

Detected

 

 

 

 

 

with integrity

 

 

 

 

 

of

 

 

 

 

 

parameters

 

 

 

 

 

stored in

 

 

 

 

 

EEPROM

 

 

 

 

 

memory.

 

 

8

Stuck Key

A key is

Run membrane pad

 

 

 

sensed to be

check and replace

 

 

 

pressed

console w/membrane

 

 

 

more than

pad if necessary.

 

 

 

75 seconds,

 

 

 

 

 

the key shall

 

 

 

 

 

be assumed

 

 

 

 

 

to be stuck.

 

 

Section 9.

Dryer Controls Overview

9-13

© 2000 Maytag Appliances Sales Company

Page 65
Image 65
Maytag MDE DG5500, MDG9800 service manual MDE/MDG6800, MDG5500