IF you heard 'gurgling' type noise...cooling unit has blockage
They is no 'band-aid' fix.......letting ammonia settle---it was already settled before you turned it on.
Taking fridge out, turning it up side down, rolling it up/down the street..won't do anything for a blockage in cooling unit.
The blockage is hard as a rock, stuck to the inside of tubing (think plaque of the arteries) and is PERMANENT.
The ONLY fix for blockage in cooling unit is replacement of cooling unit or new fridge
Is this fridge in your 2013 Lance?----1 year warranty :M