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bmwguru

Meile W1926

10 posts in this topic

Have power to unit, have power at push button switch down to door sensor. No lights on display. Any common problems

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Need appliance parts? Call 877-803-7957 now!

PMed you the service manual. Need to see if you're getting voltage clear up to the main control board. If you do, and no display, then the board is bad.

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Do you know whitch terminal on plug 8 is the power up to the main control. Have installed new main control no difference, so probably power module #4622743 ?

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Do you have the schematic from the tech sheet in the washer?

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Yes, it was taped inside the housing.

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Please scan and post a nice, big legible copy here. Or, if you prefer, you can fax it to me at 866-315-4504.

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Just faxed you the schematic for the W1926.

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It's almost legible-- Miele diagrams use absurdly small font because their engineers must hate us techs. Fax it again but using the highest resolution setting on your fax machine.

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Sorry, sent it again using the highest resolution setting on my fax machine.

Edited by bmwguru

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Much better, thanks! Uploaded your faxed wiring diagram to the Downloads section, available here if others would like to see it ==>

Let's start by checking the inputs and outputs to the lower electronic board (the power board):

You should read 120 VAC at J1-4 and J1-3. J1 will be a 4-pin connector with biggish wires.

Also, with the ribbon cable disconnected from the upper board only but still connected to the lower board and the machine turned on, you should read 4-6 VDC between pins 9 and 10 (counting from left to right) and 25 to 33 VDC between pins 12 and 13.

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