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W10216189A

 

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TECH SHEET - DO NOT DISCARD

PAGE 2

Each button 

controls its own 

indicator light.

Each button 

controls its own

 indicator light.

Turns off all 

LEDs and exits

diagnostics.

Rotating this Cycle

Selector turns cycle

LEDs on or off.

More Time button

turns the left digit

and colon of the

display on or off.

Less Time button

turns the middle and

right digit of the

display on or off.

Temperature button

controls all LEDs

above button

(Green-Amber-Off).

Dryness Level button

controls all LEDs

above button

(Green-Amber-Off).

Cycle Signal button controls

all LEDs above button

(Green-Amber-Off)

and starts Displaying Line 

Voltage Diagnostic.

This button controls 

its own indicator 

and starts Inlet 

Air Flow Diagnostic.

Start button 

starts dryer and 
displays version 

information.

Power button controls 

its own indicator; and 

Check Lint Screen,

Cycle Status, and Lock LEDs.

Figure 1.

Console Diagnostics.

DIAGNOSTIC: Displaying Inlet Air Flow

(Electric Models Only)

Used to display the air flow value at the inlet 

of the heater box being measured by the machine

control.
After entering the Diagnostic Test Mode, waiting

for the 5 second delay, and cycling through any

saved fault codes, press the Wrinkle Prevent button

to activate air flow detection. A 30 or 50 second

countdown timer will start and the dryer will

turn on.

If the dryer is cold, the countdown will start 

at 50 seconds.

NOTE:

If the dryer is extremely cold (less than

40°F [4.4°C]) the air flow may not be detected

properly, and “--” will be displayed.
If the dryer is hot, the countdown timer 

will start at 30 seconds (cool down period)

followed by an additional 50 second

countdown.

A Dryness Level modifier LED will also be

illuminated to indicate the air flow range

corresponding to the number displayed.

The More Dry LED will be illuminated for air

flow readings above 40 cfm.
The Normal LED will be illuminated for air flow

readings between 29 and 40 cfm.
The Less Dry LED will be illuminated for air

flow readings less than 29 cfm.

If air flow value is low (Less Dry LED is lit),

check to make sure the lint screen is clean,

the door seal is in place, and the vent is not

obstructed.

DIAGNOSTIC: Displaying Line Voltage

Used to display the line voltage currently being

measured by the machine control:
After entering the Diagnostic Test Mode, waiting

for the 5 second delay, and cycling through any

saved fault codes, press the Cycle Signal button.

The voltage value will be displayed.

If the line voltage is not seen on L2, the display

will flash

. Go to TEST #1, page 4.

DEACTIVATING THE DIAGNOSTIC

TEST MODE

Press the Stop button to exit diagnostics.

ACTIVATING THE MANUAL LOAD TEST

1.

Be sure the dryer is in standby mode (plugged

in with all indicators off, or with only the

Clothes Dry indicator on).

2.

Select any one button (except Stop and Cycle

Signal) and follow the steps below, using the

same button (remember the button):

a.

Press/hold 2 seconds

b.

Release for 2 seconds

c.

Press/hold 2 seconds

d.

Release for 2 seconds

e.

Press/hold 2 seconds

f.

Release for 2 seconds

g.

Press/hold 2 seconds

The motor starts right away, the “Sensing”

Status LED comes on, and “0” (zero) is

displayed (this step starts the Manual Load

sequence):

1. Motor turns

on.

“Sensing” Status

LED turns on.

0:00 is

displayed.

Now press any key (except Stop and Cycle

Signal) and the control will advance through

each step of the following sequence:

2. Motor + heater.

“Damp”

Status LED

turns on.

0:02 is

displayed.

3. Motor + heater

+ drum light.

“Cool Down”

Status LED

turns on.

0:03 is

displayed.

4. All loads turn

off.

“Clothes Dry”

Status LED

turns on.

0:04 is

displayed.

DEACTIVATING THE MANUAL

LOAD TEST

Press the Stop button to exit this mode.

L

2

Содержание Maytag NED7500VM0

Страница 1: ... off then stay on with displayed Continue with diagnostics 4 If entry into Diagnostic Test Mode is unsuccessful choose a different button except Stop and Cycle Signal and repeat step 2 If no indicators come on after repeating step 2 using a different button go to TEST 1 page 4 DIAGNOSTIC Active Fault Codes If there is an active fault code it will be flashing in the display Review the Display Fault...

Страница 2: ... to indicate the air flow range corresponding to the number displayed The More Dry LED will be illuminated for air flow readings above 40 cfm The Normal LED will be illuminated for air flow readings between 29 and 40 cfm The Less Dry LED will be illuminated for air flow readings less than 29 cfm If air flow value is low Less Dry LED is lit check to make sure the lint screen is clean the door seal ...

Страница 3: ... ONLY when in the Diagnostic Test Mode See TEST 4a page 7 Motor Drive System Failure F 26 flashes if there is a motor drive system failure See TEST 3 page 5 Moisture Sensor Open F 28 flashes if the moisture sensor strip is open This fault code appears ONLY when in the Diagnostic Test Mode See TEST 5 page 8 Moisture Sensor Shorted F 29 flashes if the moisture sensor strip has shorted This fault cod...

Страница 4: ...IAGNOSTIC Console Buttons and Indicators page 1 to verify repair 13 If indicators still do not light perform TEST 2 page 5 GAS DRYER 1 Unplug dryer or disconnect power 2 Remove the cover plate from the top right corner of the back of the dryer See figure 3 3 Check that the power cord is firmly connected to the dryer s wire harness See figure 5 4 Access the machine control electronics without disco...

Страница 5: ...n Thermal fuse no Belt belt switch Drive motor Centrifugal switch Door switch Machine control electronics See ESD information page 1 1 Unplug dryer or disconnect power 2 Access the machine control electronics and measure the resistance across P8 4 and P9 1 See Accessing Removing the Electronic Assemblies page 9 If resistance across P8 4 and P9 1 is in the range of 1 to 6 Ω replace the machine cont...

Страница 6: ... cut off high limit thermostat and heater If connections look good check for continuity across each of these components Replace the heater if it is electrically open Replace both the thermal cut off and inlet thermistor high limit thermostat assembly if either the thermal cut off or the high limit thermostat is electrically open 5 If no open circuit is detected remove the P4 connector then measure...

Страница 7: ...rature using an inlet thermistor that is part of the high limit thermostat assembly 1 Activate the Diagnostic Test Mode See procedure on page 1 2 If or is a displayed error in the Diagnostic Test Mode the inlet thermistor or wire harness is either open or shorted Unplug dryer or disconnect power Check wire connections at the machine control electronics and inlet thermistor See Accessing Removing t...

Страница 8: ...rness If a small resistance is not measured continue with step 8 8 Measure the resistance across each of the outermost contacts and the center terminal ground connection If a resistance less than infinity is measured replace the sensor harness 9 If moisture sensor diagnostic test passes check the thermistor Perform TEST 4a page 7 If the problem persists after replacing the moisture sensor and ther...

Страница 9: ... number appears in the display If any of the preceding conditions are not met 1 Unplug dryer or disconnect power 2 Check that the wires between the door switch and machine control electronics are connected See figure 13 for switch location and see Accessing Removing the Electronic Assemblies at right If the connections are OK replace the wire and door switch assembly and retest If wire and door sw...

Страница 10: ...r Accessing Removing the Electronic Assemblies page 9 and disconnect the P2 and P5 harnesses from the machine control 4 The console mounting bracket is fastened to the console front panel with two latches at both sides of the console assembly Unlatch the bracket gently with a screwdriver while pulling the mounting bracket assembly out See figure 18 5 The console electronics is split into two assem...

Страница 11: ...9828 6020698 6047486 6199300 6446357 6597144 6604298 6685241 6732447 6784673 6819255 D314261 D314262 D457991 D457992 D495453 REMOVING THE BACK PANEL 1 Unplug dryer or disconnect power 2 Remove the two rear screws from the top panel and slide the top panel to the rear to remove 3 Remove the cover plate disconnect the power cord and remove ground screw 4 Remove the metal spring clip between the back...

Страница 12: ... 196 F 91 C 4M DRIVE MOTOR 1 3 H P MAIN 3 3 3 6 START 2 7 3 0 SENSOR DOOR NEUTRAL MOTOR MTR CS MOIST MOIST RTN MODEL MODEL RTN OUTLET TEMP OUTLET TEMP RTN MACHINE CONTROL ELECTRONICS Y R P13 1 P13 2 P4 4 P4 5 P4 3 P4 6 R OUTLET THERMISTOR 10 k P9 2 L1 BR L1 LINE BK HEATER V HEATER RTN N O COM BK BK BK R R W NC HIGH LIMIT THERMOSTAT 295 F 146 C THERMAL CUT OFF 352 F 178 C HEATER 7 8 11 8 DRUM LAMP ...

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