Bosch Dishwasher Dishwasher SRI45T45EU-18 - Control Module Repair

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== ***Reparatur des Steuerungsmoduls*** (Ersetzen von 4 Bauteilen). ==
***Symptom***: Totalausfall Geschirrspüler (keine Funktion von LEDs oder Tasten)

***Ursache***: Spannungswandler ***LNK304GN*** ist defekt,

***Folge***: auch Schutzwiderstand (100 oder 10 Ohm) durchgebrannt. evtl. 2 Kondensatoren, 1Varistor defekt

***Lösung***: Austausch aller (evtl.) beschädigten Bauteile durch Aus-/Einlöten

***Materialpreis***: 3,50 €

***Ergebnis***: Anschließend wieder voll Funktionsfähig.

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***Bezeichnung Geschirrspüler:*** Bosch [link|https://www.bosch-home.com/de/supportdetail/product/SRI45T45EU/18#/Tabs=section-spareparts/|SRI45T45EU]/18, “Silence Plus”, 45cm Breite

***Bezeichnung Steuerungsmodul:*** [link|https://www.bosch-home.com/de/shop/00643257|STM451-EU / 00643257] (106,70 € würde ein neues kosten - also lieber ran ans Reparieren!)

***Bezeichnung der Platine:*** AKO 704226

Meine ***Quellen*** für diese Anleitung:

* Youtube: [1] [link|https://www.youtube.com/watch?v=au1Al4nQROI|Testen des LNK304GN], [2] [link|https://www.youtube.com/watch?v=26AqgSdqAHo|defekter LNK304GN in Waschmaschine]
* Forum: [1] [link|http://www.forum-electromenager.com/changer-resistance-circuit-imprime-lave-vaisselle-bosch.html|zu AKO704226 (franz.)], [2] [link|https://www.elektroda.pl/rtvforum/topic3339686.html|polnisches Forum]
*

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== ***Repair of the control module*** (replacement of 4 components). ==
***Symptom***: Total failure of dishwasher (no function of LEDs or buttons)

***Cause***: Voltage converter ***LNK304GN*** is defective,

***Consequence***: protection resistor (100 or 10 Ohm) also blown. Possibly 2 capacitors, 1 varistor defective

***Solution***: Replacement of all (possibly) damaged components by unsoldering / soldering

***Material price***: € 3.50

***Result***: Then fully functional again.

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***Dishwasher name:*** Bosch [link|https://www.bosch-home.com/de/supportdetail/product/SRI45T45EU/18#/Tabs=section-spareparts/|SRI45T45EU]/18, “Silence Plus” , 45cm width

***Name of control module:***  [link|https://www.bosch-home.com/de/shop/00643257|STM451-EU] / 00643257] (€ 106.70 would cost for a new one - so get on with the repairs!)

***Name of the board:*** AKO 704226

My ***Sources*** for this Guide:

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Symptoms of a faulty control module: No function during the wash cycle (no display, no noise, no reaction to pressing a button or switching it on and off).

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IMPORTANT ---> Disconnect the dishwasher from power before attempting the rest of the steps! <--- IMPORTANT

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The switch module can be removed by carefully loosening several clips - note the markings on the pictures, and carefully pry open with a screwdriver.

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Remove all plugs from the control module, bending the clips slightly to the side (blue markings)

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What needs to be replaced on the control module to fix the error?

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Change other components that may also be defective due to a chain reaction (these are all primary components for converting the mains voltage):

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