Force cooling bypass ALL controls ..the AC power, the Upper Display, the lower circuit board, the thermistor/thermostat etc
Directly wiring the element,,,running for 12 hrs....no cooling
Cooling Unit is toast regardless of no ammonia smell (could have leaked at any time and dissipates fairly quickly) and/or no yellowish residue
(which only happens if leak is in 'perk tube' (boiler section) or absorber tubes/tank
***Areas where liquid coolant is present
Top section/condenser/freezer/food coils have Ammonia/Hydrogen so if leak occurs up top.....no yellowish residue (sodium chromate rust inhibitor due to water being part of the coolant solution ie: Weak Ammonia Solution)