I have a GSS20IEMAWW that the coils freeze up

read the manual book of the freezer ,,,and see if ice is not blocking the way......

please check the defrost element and the defrost timer.

You might have ice building up on your evaporator coil. That ice serves as an insulator and prevents the internal freezer temps from going down to design parameters. The ice buildup is caused by the defrost mechanism not working - check the timer or the defrost heating element.

You will need to replace the defrost thermostat. Here is the part to order.

Hello if you have to defrost your evaporator coils every month then you problems are (1)defrost timer(2)defrost heater (3) blocked freezer drain or many;(1) check the defrost timmer so see if it is working the defrost time is from 15-25 min depending,And durning this defrost time you may hear the sound of ice melting on the heater a sine that the heater is working .(2) Blocked freezer drain,The water from the defrost cycle sitting in the drain pan,Is being picked up by the fan pulling it with the air back through the evaporator coil a second time freezing quickly ...

your evaporator coil in the rear area behind the freezer back panel is frozen over with ice and the coil can no longer deliver cold air due to ice blocking the air flow from the evaporator fan,remove this rear panel,defrost it with a hair dryer,check the defrost heating coil for continuity,they go bad regularly,if not the heater coil under the evaporator coil,it may be the defrost timer in the refrigerator section of the unit that powers the defrost coil that needs replacement

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 .

There is a small fan that draws air across the condenser coils and evaporates water that accumulates from the self-defrost cycle.

Be sure the condenser coils (on the bottom of the refrigerator) are clean and that the small fan is working. The water is most likely from the self-defrost cycle that is not evaporating properly.

I have a strong suspicion that the fan is defective. Remove the back of the unit and see if it is running. And I can't overstate the importance of cleaning the coils. Dirty coils are the #1 cause of refrigerator inefficiency something as simple as cleaning them can make a world of difference in the efficiency of the unit.

This video I made how to change evaporator on Thermador refrigerator, which is just copy of of Build in Kitchenaid. Problem was that it was running, but ice cream never got frozen. I checked pressures, was low on freon. I checked evaporator coils - found out that defrost heater got deformed and was touching evaporator coils - so it burned holes, where freon started to leak.( I think it designed not best way). Defrost heater on this fridges way to close to evaporator coils. Check this video to get an idea what Im talking about. I hope That helps u to understand why this repair is so expensive and what causing it.

PLEASE DISREGUARD GUEST FIXYA SOLUTION,FREEZER PROBLEM PROCEDURE IF NOT DEGITAL,FIRST CHECK IF ICE ON BACK FREEZER WALL. STEPS-FIND DEFROST TIMER,BOTTOM FRONT ,BOTTOM BACK, INSIDE FRIG.ON CONSOLE,LISTEN TO SEE IF FAN IS RUNNING IF SO TURN THE DEFROST TIMER CLOCKWISE TILL YOU HEAR A CLICK SEE IF FAN TURNED OFF IF SO YOUR FREEZER IS IN DEFROST,FREEZER WILL COME OUT OF DEFROST IN 20-30 MINUTES IF IT DOES AND THE FAN COMES ON YOU HAVE ELIMINATED DEFROST TIMER&FAN,NEXT REMOVE BACK PANEL TO FREEZER IF THERE IS ICE FORMING REMOVE BOTH LEADS TO HEAT AND CHECK WITH VOLT METER ON OMES,IF YOU GET ANY READING THE HEATER IS GOOD,IF NO READING REPLACE HEATER AND CLIPON TEMINATOR,IF HEATER IS GOOD DEFROST COILS WITH HAIR DRYER TOP TO BOTTOM AND THIS WILL ALSO CLEAR THE DRAIN,IF EVERYTHING CHECK OUT GOOD DEFROST TIMER ,FAN ,HEATER, DRAIN, YOU NEED ONLY TO REPLACE THE LITTLE ROUND CLIP ON TERMANATOR,LET ME KNOW-MIKE