Can anyone inform me why my freezer really give a loud shot sometimes.? My freezer sometimes gives a loud detonation when it switches on, frightens...

My freezer sometimes gives a loud detonation when it switches on, frightens me when I'm concentrating. Thought maybe it be unsteady, but no, it is ok. Freezes ok still too. Would appreciate your answers.
How does one integer the size of pumps,...
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UK. Extension organize contained by the garden contained...
The motor is mounted on rubber bushes and can sometimes "Jump" when it starts. It is possible for the body of the motor unit to bump the stops which is the thud you hear. It is normal Mine does it adjectives the time.