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Hi there, so would it be safe to assume then that the thermostat listed here Genuine LIEBHERR Fridge Freezer Thermostat Refrigerator Sensor K59-H1300-003 | eBay being the same part as the Miele listing that Turbofan found, is technically identical to K59-L1287/000 both being badged as part no. 6151086.
Ok folks, then the question needs to be asked, is it normal for a fridge, this fridge, to cycle between approx 0.5degC up to approx 8.5degC and then down again repeatedly? I would have thought in the winter months I would not need to run as high as setting 5 with not much now on the shelves.
Update on my fridge cooling issue Tony. I reset the Max Min settings on the thermometer at 10am this morning, since then the Min has gone down to 0degC and the Max up to 8degC, currently the actual temp is about 6degC on lowest shelf. Is this really normal, maybe I am just not aware of what normal looks like? but a swing of 8deg is a lot in my view. If the fridge can get down to 0degC on setting 5 then maybe the compressor is OK after all and it is pointing to the thermostat. Liebherr have advised me that the original part was in fact Thermostat Ranco RC K 59-L 1287/000. Peter.
Thank you Tony, you do know your stuff that is clear. May I just ask, what would you expect the Min-Max temps to be on this fridge on setting 5 say, overnight I recorded a Max of 9degC and a Min of 1.5 degC Fridge now sitting at about 7-8degC which is not cold enough. Compressor sounds much the same as it always did, gently humming when on. Stat 6151086 appears to be available here, is this it? LIEBHERR MIELE GENUINE RANCO FRIDGE THERMOSTAT 04LR 6151086 | eBay but those cut in cut out figures for a 6151086 stat you mentioned are not the same as this stat on Ebay states, so its confusing.
Temperatures:
from cold: -19.0 ° C
hot from: -7.0 ° C
a constant: +5.0 °
As a matter of interest my capillary tube that goes down to and behind the frost plate is white coloured not all silver. I don’t suppose you are working in the South Hertfordshire area or know someone who is? Finally Tony, I am beginning to wonder if my problem is more to do with the compressor strength or gas etc rather than the stat but I just cannot be sure without someone coming out to see it. Clearly on Max setting 7 the fridge will come down to very cold but on the other settings 4,5,6 it is not correct as I cannot obtain a 3-4degC average temp.Thank you Tony, I was told that either this 53LR05 Compatible Fridge And Fridge Freezer Thermostat (ukwhitegoods.co.uk) or this would be correct 6151087 Fridge Thermostat (ukwhitegoods.co.uk) but are you thinking that it is probably the thermostat, just checked the thermometer again and the temp has come down to 4degC but it was over 9degC earlier.
Forgot to say that I find the whole business of fridge thermostats ridiculously difficult to fathom, many so called compatible types at very different prices, Ranco, Danfoss and others, did Liebherr use Ranco as OEM, not sure, maybe I can see the make and model when looking into the exposed control knob housing.
Thank you Andy, the serial number on the plate is 18.221.482.0 and yes I too found it hard to get that model recognised in any parts lookup. I only said I wanted the fridge to hold the temp at 3-4degC which is normal I believe, I do not mean I want to have the compressor off for long periods, it should only be off for as long as the temp holds at the setting within its tolerance range. There is no fan for the compressor/condenser and probably no circuit board either as the fridge may be old school with just the thermostat switching the compressor on and off rather than being controlled by other electrical components but I do not know. When the fridge worked normally at setting No.4 or 5 the motor would kick in and be on and off periodically as you would expect, open the door for too long and that would quickly bring the motor in. Now, you can open the door and the temp rises but no action from the motor until the temp gets past 9 or 10degC and then it kicks in and brings the temp down again but that amount of swing is not right is it? I think I understand what you mean about the iceline, is that the chilled refridgerant and the sensor is picking that up in that position behind the frost plate on the back wall? is that the bulb on the end of the thermostat coil?
