Similar problem to JEByrnes.
Fridge/freezer switched off for defrost/clean about a month ago. Came with flat, so may be a few years old. Bulb went, replaced OK.
Last week, it started to get warm in fridge compartment. Thermostat still works as it as could switch off compressor. Freezer stayed frozen. Vanes at back not obstructed and warm. Compressor warm/hot.
Then steadily got worse. Fridge now very warm, warmer than outside, freezer cool but not frozen, compressor running almost continuously.
No sign of leaks at back. Knives never used to defrost.
I’m eating all the food as fast as poss.
If this was a gas/paraffin fridge, I’d switch off and turn upside down for a couple of days, but its not!
Any recommendations? TIA, Chris