Temp Control Sticking

After disconnecting refrig. line cord .Removed phillips screw on left side of air distribution console where temp control is located.
removed temp control knob and two screws witch mounts temp control . Disengaged temp control capulary tube and two electrical connections .
Removed defective thermostat and plastic sleeve from same ... them reversed procedure to in stall.
It took about 40 minutes for the whole procedure.
Confession.... I worked for GE appliance repair many years ago . 50 years ago I could have done it in 15 minutes . Old folks just slow down something terrible.