Repairman stated he cannot fix refrigerator coolant leak

your watervalve is leaking this not easy fix the valve is under top of washer. turn off your water at washer this can flood your area, call repairman 100-200 dollars for this

the thermostat must not be functioning properly...
you need to replace them

You can seal off those lines going around the door that's called the Yoder Loop. but as far as the class action lawsuit or getting Amana or Whirlpool to pay for the anything good luck. There are very few success stories there.

Check and see if the freezer coils are blocked with ice. If not you may have a refrigerant problem as you stated the coils were dirty. The new refrigerants when hot tend to clog the capillary tube which feeds the refrigerant to the evaporator (freezer coils)

Hi,
The presence of the oil tells my that you have a refrigerant leak in the coil....
The leak will need to be found, fixed, and the system recharged....

You will need to find a professional to do this but make sure that you get a complete price and a promise that it will be fixed with a warranty before giving the go ahead...

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Refrigerator Troubleshooting Refrigerator Compressor

Refrigerator Compressor Start Capacitor and Start Relay


heatman101

Amana refrig have 2 main problems . 1 is the defrost bimetal ( 1" cylinder at the top right on the freezer coils with 2 wires ) and the other is a refrigerant leak where the copper tubing joins the aluminum tubing at the freezer coils ( evaporator coils ) . If your freezer fan is not working and you have frost on the freezer coils then replace the bimetal as this also controls the defrost heater ( defrost thermostat ) . If you have no frost on the coils ( for both checks , you will have to remove the inside rear freezer panel , maybe 12 screws ) , then a refrigerant leak has happened and the best solution would be to replace the refrig .

When copper and aluminum are connected it cannot be welded, it has to be crimped. this is a problem that is not exclusive to sub zero, an all aluminum evaporator ( if it is in the refrigerator it's an evaporator) should resolve the problem nicely

sounds like a leak ,as long as the compressor fan is running it is a leak. it can be fixed by a technician only due to the tools needed for the repair. these tools cost well over 1000usd and may not be worth purchasing for a single repair.
Phil

Your condenser coil is frozen up with condensate...need to fix the defrost system, most likely it is the control sub module.