No power displayed on the control board - Kenmore Elite HE4 Electric Dryer

possible safety circuit open

If the display on your Neff T18FD36X0/01 appliance is flickering and not staying on, there could be a problem with the control board or the display module itself. Here are some steps you can take to troubleshoot the issue:

1. Check the power supply: Make sure that the appliance is getting power by checking the outlet and the power cord. You can also try plugging in another appliance to see if the outlet is working properly.
2. Check the control board: If the power supply is fine, the next step is to check the control board. Turn off the power to the appliance and remove the control panel cover to access the control board. Look for any loose wires, damaged connectors or burnt components. If you find any issues, you may need to replace the control board.
3. Check the display module: If the control board is fine, the issue may be with the display module itself. Remove the control panel cover and locate the display module. Check the connections and make sure they are secure. If the connections are fine, the display module may need to be replaced.
4. Call a professional: If you are not comfortable troubleshooting or repairing the appliance yourself, it is best to call a professional technician. They will be able to diagnose the issue and recommend the best course of action.

Remember to always turn off the power to the appliance before attempting any repairs or troubleshooting. Safety should be your top priority.

If there is a mains interuption and the power supply on the main board is failing, that could cause a failure as you have described.
As an engineer I would repair the main board but I suspect you have a fitter that will fit a complete board as he doesn't know how to repair the faulty board.

Check low voltage power supply to the main control board.

To determine if the user control and display board is defective, try pressing the buttons on the control panel. If some of the buttons work, but others do not work, the control and display board might need to be replaced. Additionally, if the display is not working, check the power to the user control and display board. If the user control and display board has power, but it isn't working, replace it.
The main control board may also be faulty.

Normally you must have a problem with the power supply located in control board.
some models has separated the a) display board and control board b) other has in one board.
see the picture. depending you must to replace respectively. However unppluged the power cord, and clean with erase pencil the ribbon cable coming from keypads display vs control board, and see if you can restore it.
Otherwise you must can call some service tech.
God bless you

this a problem with power supply coming inside from control board and transformer.
Sometimes some model has a) display board b) control boad separetely c) other has integrated in ONE board.
you must take the decission to call some service tech.
However you must try with erase pencil clean the ribbon cable from display board vs control board and see if restore it. Of course you must unppluged the power cord see the picture.
God bless you

1) You must test first the power supply for +5DC for I.Circuit( Including EPROM, ROM, etc)
2) Test the flexible cable between KeyPanel and display board, and clean.
3) Chechk the connector between Display Board with the lower board(Main Controller Motor)for loose connection, loose wire.
4) Test the transformer controller supplying the 12VCA, to the power supply at the Main Controller Board since this supply the +5vd to the Display Board.
Finally you must have Strong Conclusion if the problem is 1)Display Board faulty, 2) Power supply Faulty, 3) Transformer Controller Faulty 4) Main Controller Board Faulty.

For All test you must use Dvoltmeter.



sincerely.
E.CUADRA
MANAGUA, NICARAGUA.C.A

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