Question about Maytag Neptune MAH5500B Front Load Washer

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Service Mode does anyone know how to access the service mode to run tests

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System Diagnostics
SERVICE MODE
The service mode provides service personnel the
ability to verify the operation of the washing machine.
The service mode can be entered in the middle of
any wash cycle. While in the service mode, the
servicer can start a variety of special service tests.
Accessing Service Mode:
Pressing down the delicates and heavy soil keys for
3 seconds places the machine in the service mode.
Motor speed will be displayed when started. To exit
Service Mode, press delicates and heavy soil keys
for 3 seconds again.
Troubleshooting
December 2004 4 16025861
©2004 Maytag Services
Stage of
Wash Cycle
Advances To
Presoak End of Presoak
Wash Every 5 Minutes of
Wash Time
Spin/Drain Every Step of The
Spin Profile
Rinse End of Rinse
Speed Range Displayed
a) 0-99 rpm 0-99 (actual)
b) 100-999 rpm Speed / 10
Quick Service Cycle
While in service mode, pressing the delicates key
will start a quick service cycle. This will be a quick
check of all systems.
The following steps will be followed.
1. Energize the cold and bleach water valves. Fill to
Low level, then turn bleach and cold off.
2. Energize the hot and fabric softener water valves. Fill
to high level, then turn all valves off.
3. Lock the door.
4. Tumble using 7/3 tumble pattern for 12 sec.
5. Turn the drain on.
6. Spin to 800 RPM using default rates.
7. End spin and coast down.
8. Unlock the door when the RPM is zero.
9. Display a ‘PA’ (Passed) on continuously for 10 seconds
if no diagnostic codes were logged during this
test.
The up arrow if pressed will advance to the next step.
The right most dot will be turned on as an indication
of failure and stay on until quick service cycle test
has reached the end. Any diagnostic code logged
during this test will result in failure of the test, but will
not necessarily stop the test. While in quick service
cycle, the pressing of the hand wash will suspend
the machine at this step for 30 minutes until the
Hand Wash key is pressed again. All LED’s will
flash on and off while the cycle is suspended, or on
hold.
Motor Drive System
To check the system, check the board for proper
output to the motor control. Performing a board
output test does this. Then perform the Motor
Control Board Output Test.
Motor Control Board Output Test
1. Disconnect power to the washer.
2. Remove the front panel and pull the JP4 Connector
from the motor control board.
The following Quick Spin test steps are as follows:
1) Lock the door.
2) Spin to 350 rpm and hold for 6 seconds.
3) Spin to 550 rpm and hold for 6 seconds.
4) Spin to 600 rpm and hold for 6 seconds.
5) Spin to 650 rpm and hold for 6 seconds.
6) Spin to 800 rpm and hold for 6 seconds.
If the Spin key is pressed again during the Quick Spin
test, the current speed will be held indefinitely. Pressing
the Spin key again will allow the quick test to
proceed as listed above.
When the washer is in the Service Mode, the speed
will be displayed as a two digit number or a letter/
number.
Quick Spin Test
While in service mode, the pressing of spin key shall
start the washer in the quick spin mode.
3. Reconnect the washer power cord to supply
voltage. Make sure the door is closed.
4. Press delicates and heavy soil keys for 3 seconds
to activate Service Mode.
!

Posted on Jan 23, 2008

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Press and hold delicatse and heavy soil buttons for three seconds

Posted on Jan 29, 2008

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1 Suggested Answer

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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1 Answer

Drain pump will not come on. There is a way to go into "engineering mode" to force it on to troubleshoot it. Do you know how to go into engineering mode and force on drain pump?


You can go into Service Mode and turn it on with the console key pad.

Brief write up to turn on the drain pump in Service Mode;

I would go to page 16 of the SM lower right hand part of page, Board Output Test and turn on the drain pump in service mode to pump out the tub.


Enter Service Mode by simultaneously pressing and holding the Enviro Plus and Spin Only keys for three seconds or the display reads "00"


Pressing the Delicates key will lock the lid. Now press the Presoak key the drain pump will turn on. Stop with off button or hit the Presoak key.


The Service Manual and Sears Parts Direct for reference. You could have something jamming the impeller of the drain pump. Turn it on in Service Mode and see if you hear it spin up.

The drain pump sits in the right back corner of the machine with no access from the rear or sides you have to remove the front panel to access. I'll post a pick of the wash tub removed so you can see. The drain pump is on the back right side and the Motro Controller is on the left front side as the pic below shows.

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Test mode? Do you mean Service Mode and you turn on the solenoid for the water valve to divert water to the Fabric dispenser reservoir and it is flushed in Service Mode?

See if this solution will help with your trouble shooting.
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4 Answers

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There is not a "diagnostic mode" for the neptune washer.
All tests and functionality are done at each setting using the timer (except the tach circuit)
What is the problem you are looking to diagnose??

Thanks!

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Maytag neptune washer stops after filling with water on the first cycle...will not spin Neptune stops after filling. No codes. Lid unlocks. Ideas?


Hello n8mtsn,

I would pull the 120VAC power cord to the washer for 10 seconds then power back up.
See if you can get into service mode. To enter Service Mode press and hold he Enviro Plus and Spin Only keys for three seconds or until the control beeps and the display reads “00”. If you can’t get into Service Mode I feel you have a Control Board issue/failure.

If you can get into Service Mode then go to page 15 of the SM and we want to try a Quick Service Cycle test. Follow the instructions to enter the Quick Service Cycle test and let us know the results. If the test will run it will take about 10 minutes.
Link to Service Manual for reference. Sears Parts Direct for reference.
Rich

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