- This topic has 11 replies, 3 voices, and was last updated 3 years, 3 months ago by
.
-
Posts
-
Hi
I have a 9 year old Miele Frige Freezer Model KFN 12823 SD-1 Index 20K 164.
Recently it started intermittently beeping four times with the super freeze LED flashing and the 9 and 5 leds on the fridge temperature block flashing. Its been fault free before this. I could fix this temperorarily just by power cycling but it is gradually getting more difficult to clear Freezer temp was OK The fridge temperature was OK 5 degrees at the bottom of the fridge but probably I’d been clearing the error before it cooled down.
I also defrosted the Fridge/Freezer fully one one occassion. I aslo removed the back panel of the freezer unit and it was clear of ice. I checked the drain holes and they were clear. The freezer and dynacool fans were not running when I checked so I assume the Fridge thought it had reached the required temp. Am I correct that the fan in the freezer cools the fridge?
Today I could not clear the fault so I removed the sensor cover on the left panel of the fridge ( the air sensor?? ) and put it in a cup of hot water and power cycled the Fridge/Freezer. Now the Freezer fan runs and the dynacool fan runs when switched on and no alarm. So my guess is that this sensor is giving the wrong reading. The error condition returned when I left the sensor in the air and it cooled down.
I did not want to cut out the sensor and check with an ohmmeter just yet until I have a spare. Does anyone know the resistance values for this sensor at various temps? Is there a spec sheet?
I rang Miele and asked them what the LED error sequence indicated and they said it could be several things and I should book a service visit. I was a service engineer for many years but not on white goods so am reasonably capable to replace components, solder use a meter etc but have no experience of Fridge/Freezers.I asked Miele for the sensor part number – they gave me 10321751. This seems to be compatible with Liebherr part number 9590206 – Is that correct?
Does it seem reasonable to start by replacing the air sensor? – If so will the one in kit 9590206 be the correct one for my model?
Is the sensor in kit 9590206 also the same as the evaporator sensor on my model?I thought I might get the cheaper alternative part one in case this was not actually the fault -would that work on my Miele model:-
https://shop.ukwhitegoods.co.uk/d397030-fridge-freezer-sensorSorry for so many questions and thanks for your help
Error 9 + 5 with Dynamic cooling light flashing in sequence is failure of the fridge evaporator sensor, either sensor you have mentioned will be fine to fit.
Hi Tony
Thanks for the response. The error is actually the ‘Super Freeze’ button led flashing and the 9 and 5 Fridge temperature leds flashing along with 4 beeps.
Thanks
Hi
I have the new sensor now but need to check where the fridge evaporator sensor is located on this model. I thought it might be behind the light unit in the Fridge but there is only one cable for the light and fan. There is a sensor on the left hand wall under a cover I assumed that this was the air sensor?
thanks
Hi
Can anyone confirm where the fridge evaporator is on this model. Is it foaming in behind the fridge compartment. If so does anyone know the exact location? I can only see two cables running up the back of the fridge section one for the air sensor and one for the Fan and light. Does anyone have experience of changing one of these? Seems like a shame to scrap what was a £700 Fridge Freezer which is otherwise in good condition for the sake of a £25 sensor. Any help or hints from the experts would be much appreciated.
thanks againIf you can only see the air sensor, then the evaporator sensor will be foamed in, in which case part 9590084 will be required.
Hi Tony
Thanks very much I appreciate you taking the time to reply. Now I need to decide if this is a job I can do. Does the sensor kit come with instructions? I see the sensor cable has a plug so does this just connect directly to the PCB and then just feed through the hole where the air sensor enters thus just bypassing the foamed in sensor? How difficult is it to access the PCB? How would I identify the correct sensor cable on the PCB? It might be obvious when I have a go but actually the Fridge/Freezer is working again now although I am sure it will fail again.
Again thanks for your help.Replacing the sensor and connecting it to the rear PCB is a tricky and awkward job, the position on the board is colour coded as is the sensor, in this case it is green. Fitting instructions generally come with the part for this type of repair.
Tony R – thanks very much for your help. I had already bought the 9590206 Liebher sensor kit so I used that to replace the evaporator sensor. I found the instructions for the 9590084 sensor kit on-line. I connected the new sensor to the existing cable from the PCB using the connector box supplied in kit 9590206 and fed it through the hole at the back of the fridge compartment. I then stuck the new sensor to the back wall roughly about where it would be if I was using the new cover supplied in the 9590084 kit and used some small cable trunking to hold it all in place. Getting access to the PCB was a little awkward but not too much trouble. I removed the two top screws and one middle screw on the grill at the back so I could feed the new sensor cable and push it into the existing cable clips. Fridge and freezer temperatures are OK. Not the most elegant solution but it been working for almost a month now so I am confdent that the issue is resolved.
Repair kit instructions:-
https://assi.lhg.liebherr.com/Serviceline/b2b/bab2b/Media/Documents/SV/2008/27200800SV_en.pdfI’m in a similar situation. Thanks for sharing the solution and the PDF. Yesterday I went through tons of sites looking for information. But my saved PDFs stopped opening, so I had to use an online tool from an article https://euroweeklynews.com/2024/02/21/a-deep-dive-into-pdf-guru-and-its-impact-on-digital-documents/ that explains in detail how to easily work with digital documents nowadays. I know the problem is with my laptop, but I don’t know the exact cause yet. It might be something with the reader.
- You must be logged in to reply to this topic.