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Michael, Customer Service
Category: Appliance
Satisfied Customers: 9568
Experience:  I have been an appliance repair tech for over 30 years and will help you solve your problems.
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Morning, I have a Liebherr fridge freezer CUN 3033 the alarm

Customer Question

Morning, I have a Liebherr fridge freezer CUN 3033 the alarm keeps sounding. I have tried defrosting it and removed any excess water but the alarm keeps going. If I switch it off period of time then back on again the motor starts and the the alarm stops but then starts again after a couple of hours any help appreciated. Matthew
Submitted: 3 years ago.
Category: Appliance
Expert:  Michael replied 3 years ago.
I am Tech Michael, I am sorry to hear that.
Please be patient as these are technical issues and I want to guide you the best way possible to save you money and time;-)
Please remember these are technical issues and may require some back and forth conversation to sort this out.
May I have the full model # ***** also the age of your freezer?
Thank you
Tech Michael
Customer: replied 3 years ago.

Think the fridge is about three years old.

CUN 3033 Index 21D/147

No(###) ###-####04

Expert:  Michael replied 3 years ago.
Thank you information,
How cold will the unit get over the time period it runs?
Will it freeze water in the freezer and keep it frozen or does it cut out and defrost the water?
Also will it come back to cooling on its own?
I need to know this to be sure what part is failing.
Thank you patience.
Tech Michael
Customer: replied 3 years ago.

It has just run longest period after being switched back on and ran normally hours with no alarm, cooled on its own and everything in freezer compartment frozen. But alarm has just gone off again light flashes on 5 but silence alarm and press superfrost button get continous light on 3 but will jump to 5 again.


Expert:  Michael replied 3 years ago.
Let this run hours and let me know if the freezer will make and hold ice.
That will tell me a lot as to what you need to fix this.
Customer: replied 3 years ago.
Sorry light flashes on 3 and continuous on 5 will alarm just gone off again but could not silence it. Flicked the mains power on and off and chiller has kicked in again and alarm silenced
Expert:  Michael replied 3 years ago.
Good morning Matt,
This means the main control board is failing unfortunately.
It needs to be replaced at this point because it will only get worse.
Its easy to replace but you will need to read the instructions it comes with because that one sometimes comes with a slight difference in wiring.
Don't worry I will be here to help;-)
The best place to get that board would be this web site:
But its really best to call part. Here is their phone contact info convenience:
Unit 5 & 6 Bonnyton Industrial Estate
Munro Place
KA1 2NP ***@******.***
0845(###) ###-####(Direct: 01563 557156)
I will stick with you until this is fixed, please don’t forget to rate my service to you before you close this page. I will be available to you at no additional cost , you can then get in touch with me anytime by simply replying to this message.
Thank you and have a nice day Matt.
Tech Michael
Expert:  Michael replied 3 years ago.