This is not a make that we know in North America and appears to be an African make, Tanzania?
The reasons for over heating compressors are Condenser fins blocked with fluff.
The reason for a compartment not cooling is lack of refrigerant gas or blocked condenser fins.
Clean the condenser with a brush and a vacuum. If that doesn't fix it, you need a Service Call or a new one (depending on age and condition).
https://www.google.com/search?q=westpoint+refrigerator+model%23+wnmn-4117.ER
..
share user manual for Westpoint Microwave Oven WMG245EGSS else a close picture of oven so i can read print for buttons on oven as the one we have in out hotel room is faded out.
If you wish to get some details about microwave oven and its working ; check the site linked here. Pull up older posts.
http://electro-medical.blogspot.com/