The Temperature display LED keep blinking and making a knocking sound. The freezer seems to shut it self out and it's not freezing. How do I fix it ? It's 4 years old
You have a circuit board failure, possible front & rear. Some capacitors fail !!
A few pounds worth of caps from RS can fix it!!
I fixed mine and 2 others.
Hope this helps
see forum at ukwhitegood, I'm near page 22