Question about Miele CVA4070 Coffee Maker

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Miele coffee maker cva 4070

After cleaning, turning on the co.ffee maker fault 73 came on. same thing happened to my brother-inlaw. can'tfind out the problem until monday

Receiving fault 73 after cleaning the brew unit

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  • flag1 Oct 16, 2008

    Fault 73 error comes up and when I try to take out the brew unit to clean it, it won't come out

  • marias7 Dec 30, 2008

    i HAVE THE same problem. I am trying to descale my machine. I go through all the motions and when the machine gets to 0.01 minutes it freezes and no water goes through. I switched off teh machine and started it a few times but the same thing happens.

    f73 came up twice. Do I need technical help?

  • Anonymous Mar 23, 2014

    Fill the milk flask error

  • Nirupa Prabhu
    Nirupa Prabhu Sep 27, 2014

    Thankyou msquared!!! We'd been struggling with this problem for a while, and were seriously considering replacing the entire system rather than repairing it based on several other online cost analyses.Your solution worked - looking forward to a good cuppa coffee this morning. Thanks again for the $$$ saved.


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OK. Here's the deal. I struggled with this CVA 4070 (F 73) problem also recently, and even posted a questions in the cyber world about it. I jiggled, re-cleaned the machine, re-read the Miele manual, and scoured the internet for schematic drawings of this brewing unit's insides. No luck. Finally after finding out I'd have to pay $199 just for a service clown to walk in my front door, I said NYET!!!  I must solve by myself. If I can take apart & fix my Dyson, etc, etc, I WILL DO THIS TOO!!  (MUST HAVE COFFEE>>>)
Pull out the brewer, turn it a quarter-turn to your right, and look at the spot where that small black plastic piece -- shaped like a block "M" or block "W" -- should be situated. Pull it out, if it isn't out already. Don't worry about yanking it out or harming these parts, said the Miele troubleshooter guy in New Jersey on the phone. They're "made from the same plastic used in football helmets."  Okey-dokey. 
This approx. 1.5" wide, blocky plastic piece is part of the "slide" that takes the brewed coffee grounds into the waste container. When positioned correctly, it looks like a block "W,"  with the "wings" ointing up, and slides in just under a brown 1.5" flat piece. A small, down-facing tab on the brown piece clicks into the "W" piece and holds it in place. The "W" should feel fairly solid, although it is not rigidly in place, as the entire mechanism is a movable system to deposit the grounds in the waste receptacle. 
Put everything back inside your CVA 4070 "love" machine, hit "on," and wait for it to go through its warm-up.  No F73 message?  Yeah!  Mission Accomplished. You, like I, have fixed your Miele, saved your family relationships, and saved yourself a bundle from unnecessary service calls.

Posted on Apr 09, 2009

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  • robert2727 Jul 21, 2011

    I Just checked and this piece was in the correct W position. I still get the fault 73 and can't use my machine. This machine has been a constant problem. The repair guy was at my house ten times while the unit was under warranty. The last time he came he didn't bother to tell me it was out of warranty until he presented a bill for $150. The machine worked for a day after he left and then broke again. He must have said five times during his visits that he would put in for a new brew unit under warranty but it never happened and now they don't know what I'm talking about. Avoid this machine it has wasted countless hours of my time.

  • Nirupa Prabhu
    Nirupa Prabhu Sep 27, 2014

    Tried what mcsquared7 suggested and it works. Saved the unit the fate of replacement, and us $$$. Thank you mcsquared7!!

  • seberle Mar 02, 2016

    Turn the machine off from the backside (or unplug it) for a few minutes, then turn back on from the backside (or plug into wall outlet), then turn power on from the top.


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Miele models CVA4070 and CVA4075 have a small, removable pastic part in the shape of a "W" or "M" in the chute of the brew unit. If this plastic part is inserted in the shape of an "M", fault 73 is displayed. Replacing the part in the shape of a "W" fixed my fault message.

Posted on Feb 28, 2008

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1 Answer

What is error code 73?

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Getting Fault 73 for my CVA 4070 at start-up. Have removed the brew unit to ensure is clean and plastic piece -- shaped like a block "M" or block "W" - is in the "W" position. Have tried a manual on and...

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