Rangemaster SXS Fridge-Freezer, challenging fault!!?

Hi

I’m hoping for some help/advice and I apologise for the length of my post.

We have just bought a house and thrown in with the deal is a 2008 Rangemaster SxS Fridge-Freezer. We were told this fridge-freezer was faulty and that it works but doesn’t make ice. A repair was attempted but failed because ice-maker brackets are no longer available.

However, after using the unit we have established it also has a number of other problems that is perhaps contributing to the lack of ice…

1. There is a big temperature difference between the top and bottom freezer shelf. With freezer set at -19oC the temperature on the bottom shelf is -24oC and temperature on top shelf under ice-maker unit is -7oC. Temperature of door shelf at same level as icemaker part is +5oC – which isn’t right!?
2. Freezer temperature gauge shows rapid temperature rise when door is open. Door was left ajar for just a few minutes (accident) and temp display showed +2oC! It took 12 hours before reading -19oC again.
3. Fridge seems to be working fine and maintaining the +5oC no problems.
4. We’re not too bothered that the ice-maker isn’t working but we would like a constant temperature throughout the freezer. Although I suspect the reason the ice isn’t working is because the top is so warm!

So, my question is…

Do you think a fan has failed in the Freezer or could these number of problems be more symptomatic of another problem?

I understand these fridges are badly made chinese units with expensive parts? I don’t want to spend £200 on it to find it develops another fault.

Any help, guidance will be gratefully appreciated!

Many thanks,
Chris