Sealed System Schematic - Kenmore Pro model 401.40483800 (Same as Samsung Model RS27FDBTNSR/AA-00

[billkent]

I need to know how the sealed system of this side-by-side is plumbed.  It has a single compressor and condenser, two evaporators (one in fridge, one in freezer).  It also has a "stepper motor", apparently a small motor-controlled valve with one input capillary tube from the compressor, and two output capillary tubes (one going to each evaporator). I can't completely follow the plumbing.  Can anyone explain how the capillary tubes and stepper motor valve function to control temp. on both sides?

The fridge side works fine. The freezer is at about 50 degrees. No frost on the freezer evap. coil, and the evap. fan seems to work.

Thanks for any guidance.

[Vance R]

On 7/6/2022 at 12:43 PM, billkent said:

Can anyone explain how the capillary tubes and stepper motor valve function to control temp. on both sides?

The freshfood and freezer evap are plumbed in parallel with the stepper motor controlling refrigerant flow to either evaporator. Depending on cooling needs the board direct flow the to one evap or the other. Would recommend if the  freezer evap is not frosted starting by check all the thermistors to see if one is out of spec.