Question about Miele CVA 4066 Stainless Steel
I have tried cleaning and drying the contacts, but nothing changes. The message stays the same. I recently took apart the entire brew unit and cleaned it. I have also run the descaling cycle and the brew unit cleaning cycle. It was at the end of the brew unit cleaning cycle that I got the error message.
I had the same issue with the empty drip tray message not going away. At first I was reluctant to remove the machine and open the back, but it is pretty easy to do. Once you remove the back panel you can see the contacts. My contacts were covered with coffee grinds and moisture. I did a thorough cleaning and dried them off. I put the machine back together and then restarted. Everything worked like a charm. I think when the contacts were wet with debris, they weren't able to discern if the drip tray was in contact or not. Thank you for the suggestion to open and clean. Saved a service charge. Also allowed me to get a better idea of how the machine is put together.
Posted on Apr 22, 2015
I have never had seen this problem ... however assuming the tray contacts are not shorted in any way ... its likely to be a problem with contacts in rear of the tray cavity. I would check the following;
1. Remove drip tray and shine a torch into the tray cavity to inspect the receiving contacts that accept the tray contacts. Perhaps theses contacts are shorted in some way.
2. The next step is to open up machine, but you need to be suitably experienced with electrical appliances to perform this step. Disconnect the power at the outlet (or if this is not accessible than at the fuse box). Remove the machine from the cavity and remove the rear panels (making note of which screws go where). Locate the wires that terminate on the contacts on the rear side of tray cavity. Disconnect the wires from these contacts. Replace panels and then reapply power to unit. If this solves your problem .. then there must be a short on the contacts in rear of tray cavity. If this does not solve the problem then trace this wire back to control board and remove wire at the control board. Again replace panels. If this solves problem then there must be a fault in the wire which can be fixed/replaced.. If this does not solve the problem then it would appear to be a problem with control board and best to call Miele.
Please come back if you need more help and also once you solve the problem .. to explain what went wrong. regards
Posted on Apr 21, 2015
I had this problem too and was able to fix it thanks to other people's answers. What I did was open the side of the machine to take out the brew unit. That way I could easily see the contacts for the drip tray in the back. Some water had pooled in that area so I cleaned that up and was able to finish the descaling cycle.
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Posted on Jan 02, 2017
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