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Introduction

If your machine suddenly turns off while heating up or brewing, one or more bad capacitors are often the cause.

  1. Remove the plastic water tank
    • Remove the plastic water tank

    • Remove the iron sheet and the underlaying black spillover pan

  2. Turn the machine upsidedown and lose the T10 screw right next to the power cord Lose the four clips on the side. Use a spudger or a flathead screwdriver to gently bend the little plastic clip on the outer side of the rectangular hole inwards. Use your other hand and a spudger or a plastic card to lever off the coverage. Do this with all four holes.
    • Turn the machine upsidedown and lose the T10 screw right next to the power cord

    • Lose the four clips on the side. Use a spudger or a flathead screwdriver to gently bend the little plastic clip on the outer side of the rectangular hole inwards. Use your other hand and a spudger or a plastic card to lever off the coverage. Do this with all four holes.

  3. Disconnect all cords from the circuit board besides the two black ones on the right(marked black on the first picture); these are soldered and therefore cannot be disconnected so easily. Disconnect all cords from the circuit board besides the two black ones on the right(marked black on the first picture); these are soldered and therefore cannot be disconnected so easily. Disconnect all cords from the circuit board besides the two black ones on the right(marked black on the first picture); these are soldered and therefore cannot be disconnected so easily.
    • Disconnect all cords from the circuit board besides the two black ones on the right(marked black on the first picture); these are soldered and therefore cannot be disconnected so easily.

  4. Desolder the big yellow 0.68 microf capacitor Solder in the replacement capacitor Solder in the replacement capacitor
    • Desolder the big yellow 0.68 microf capacitor

    • Solder in the replacement capacitor

    • Sometimes the two smaller capacitors (0.047 microf) are also damaged. Test the machine after step four, if it doesn't properly work, replace these two as well.

Conclusion

To reassemble your device, follow these instructions in reverse order.

5 other people completed this guide.

benston

Member since: 06/08/2015

220 Reputation

1 Guide authored

5 Comments

Die zwei kleineren Kondensatoren haben 0,047µF, nicht 0,47µF.

Ansonsten - Gute Anleitung, hab wieder eine funktionierende Kaffeemaschine.

Danke dafür!

Rainer Kraus - Reply

Du hast Recht, danke für den Hinweis

benston -

Smashing, Thank you. My 4yr old Petra was leaking from thé bottom and by removing thé bottom i saw thé filtre was blocked and was able to clear thé crud.

john collins - Reply

Hallo, ich habe sowas noch nie gemacht (Hausfrau im fortgeschrittenen Alter :-) möchte aber meine Petra retten. Lötkolben ist bestellt, die Maschine ist geöffnet aber jetzt scheitere ich daran, dass ich nicht weiß, wie ich die Kabel abmachen soll! Gibt es da eine Trick? Die sitzen ziemlich fest und ich möchte nichts kaputt machen.

Annette

Annette - Reply

Wooohoooo!!!

Das alte Mädchen läuft wieder - mit einem Ersatzteil für 93 Cent!

Ich (58 Jahre und noch nie vorher gelötet) habe es nach Deiner Anleitung geschafft.

Dankeschön!

Annette - Reply

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