Miele KF 7542 SN F4 Code

[Tony R]

Connector block will be fine, make sure the connections are good, if it cancels the F4 alarm it will eliminate a fitting error.

[good1231]

Tony R wrote:Connector block will be fine, make sure the connections are good, if it cancels the F4 alarm it will eliminate a fitting error.

Thanks Tony, hopefully it does the noise is driving me insane! i hear clicking in the fridge etc will try and let you know fingers crossed.

[good1231]

Bad news… after using a connector it’s been good for a few hours but the beeping has started again :(. Any idea what it could be now please?

https://ibb.co/gRKsTDQ

[Tony R]

Are you definitely working on the right sensor ? there are as mentioned earlier TWO in the freezer, the one clipped to the rear panel is the air, the one that gives F4 is poked into the bottom of the finned coil behind that panel, only other issue is a faulty or incorrect sensor.

[good1231]

100{e5d1b7155a01ef1f3b9c9968eaba33524ee81600d00d4be2b4d93ac2e58cec2d} the bottom one in the coil 🙁

https://ibb.co/0ytJ1GZ this was the packaging. 🙁
i did get Miele to double check and they did say this was the right part for the f4 fault

not sure If this means anything but I just had a look at the new cable and the old. The wires of the old and new do match not sure if that means anything. Top one is the new cable and bottom is the one that I removed. I noticed the last four digits differ I assume this was the manufacturer date.

https://ibb.co/mBStftJ

[good1231]

https://streamable.com/1ak5ff

current situation, this is absolutely driving me insane.

[good1231]

Tony R wrote:Are you definitely working on the right sensor ? there are as mentioned earlier TWO in the freezer, the one clipped to the rear panel is the air, the one that gives F4 is poked into the bottom of the finned coil behind that panel, only other issue is a faulty or incorrect sensor.

Tony any other further help please? I don’t think it’s my connections I disconnected the wires and the fridge beeped displaying the f4 warning once I reconnected the cables the f4 disappeared.

The sensor must be faulty or incorrect. I think I will purchase part number 9590214 like you mentioned previously or Could it be anything else? Sorry I honestly am not this annoying :rolleyes:

[Tony R]

Sensor 9590214 has a lower resistance than newer versions used now, I am not sure why you still get F4, The resistance in KOhm at +20c is 2.4 at 0c 5.7 and -18 its 13.5 for the one you require, new sensors are much higher, +20c is 5.9 and at 0c its15.3 and -15c its 34.1.
This could confuse the PCB if the sensor is not compatable despite being sold as an evaporator sensor, which is why it is important to purchase the correct part and why I advised buying the 9590214 in the first instance.

[good1231]

Tony R wrote:Sensor 9590214 has a lower resistance than newer versions used now, I am not sure why you still get F4, The resistance in KOhm at +20c is 2.4 at 0c 5.7 and -18 its 13.5 for the one you require, new sensors are much higher, +20c is 5.9 and at 0c its15.3 and -15c its 34.1.
This could confuse the PCB if the sensor is not compatable despite being sold as an evaporator sensor, which is why it is important to purchase the correct part and why I advised buying the 9590214 in the first instance.

Thanks Tony. I have replaced the sensor with the old sensor and the fridge seems to be working again (touch wood) if the problem persist I will by the part number you mentioned.

However we have a new issue which is that the freezer door does not seem to stick and I am currently keeping this held with some weights. The temperature is all okay but the issue is now the door. Any ideas what it could be?

The door seems to be closing now, I moved some items around from the top shelf.

thanks 🙂

[Author]

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