Hi,Thank you for using Just Answer my name is ***** ***** I will help with your question. Please could you let me know what is displayed after the EC do you have any numbers appear.
I do feel that the fridge and freezer may need regassing. If it does it is likely to need some form of repair because the gas should not escape under normal conditions. I am worried that you say the tank is very hot the condenser should run warm when working but I have never known them to run very hot, there should be an oil in with the gas that lubricates the parts if the gas has escaped, that could explain why the condenser is hot.
I am sorry but I think it would be best if you arranged for an engineer to come and have a look at it, do you have any insurances on the fridge that might cover an engineer call out.