Noted thread where poster bought a dented fridge and it failed to operate.
Few days ago bought a replacement water cooler...Old one developed a leak.
Brought it home upright over bumpy farm roads. Plugged it in..Nuffink no compressor vibration. Left it overnight and heard it startup..Sort of worked ..had cold water…later stopped again..coolish water…
Now after 5 days perfectly okay, good consistent cold water. Can only assume bumpy ride bubbled coolant???