We have had problems with our ZX99 F/F freezer in the past and thanks to this forum solved the problem by fully defrosting the freezer, which then sorted out the problem with the fridge department, which was not staying cold.
We now have the problem back on a recurrent basis.
If we defrost the freezer the fridge works again, but after about a week the temperature in the fridge slowly starts to rise and after about 10 days we are back to square one with the fridge not working. So we have to defrost the freezer again.
Any advice as to what could be wrong would be appreciated.
Thank you.