My problem is: I have an Amana refrigerator: Model #B136CAR3, Part #Y12179801. but part is discontinued...???

SOURCE: water leaking from bottom of side by side refrigerator

The is a fairly easy way if you have a strong stomach.

On the back of the refrigerator, you will see a plastic drain line running to a pan underneath the box. This is the drain line for the evaporator condensate water. It is stopped up in the refrigerator section of the box.
Here is the tough part...Pull the hose out of the back until you can wipe it off with a clean towel and blow hard through the hose with your mouth.
By the way ...take your food out of the fridge...you will blow some pretty disgusting stuff out of the drain and into your desert if you don't. This will cure your leak.
Pssst...you can used compressed air if you are a wuss! lol
Good luck

SOURCE: FREON

the backpressure or suction pressure varies with the load and the ambient temoerature of the unit. best way to make sure that your charge is correct is to pull refrigerant out and evacuate aand weight in new refrigerant with a scaloe.

SOURCE: How do I install compressor for amana refrigerator

Hi.The compressor motor is connected to the refrigerant system, which is not user serviceable. It will be necessary to have the compressor serviced, or replaced by a qualified technician. During this process, the pressurized system will need to be re pressurized. This will require special tools, and regulative equipment, as well. This can be very dangerous, and that is why I prefer to give proper advise on this type of repair. Kindly, contact your nearest service tech.

Testimonial: "Thank you very much for your advice."

SOURCE: Amana Refrigerator Model # ARB 2214 CC with leaking ice maker

Good day,
If the fill pipe that fills the ice maker is in it's proper position, then it is a defective water fill valve located in the bottom rear of the machine.
After harvesting the cubes the ice maker mechanism continues to rotate and turns the water valve on for 7 seconds. If it does not shut off smartly then it can cause the well to overfill, and flow water into the bucket.
Do not let this go. A small leak could turn into a major overflow, even overnight causing serious problems to the machine and as I have seen the entire house.