I have a Whirlpool K40 ice maker, has been working fine but all of a sudden the ice is really thin, have tried the ice thickness thermostat in various positions but to no avail, still very thin?

SOURCE: I have a Whirlpool side

Humm thats a good one, but I will try to help you out. First off you say the icemaker is new, so does that mean you bought the icemaker and installed it on the refrigerator. Or is the refrigerator new and it has an icemaker. If you installed the icemaker new on an older refrigerator you can have a few problems. Most likely the freezer is not getting cold enough for the icemaker to cycle on its own. Especially if you are peaking in every few minutes like I would be doing. The icemaker will start a new cycle when the temperatur hits 0 degrees. If the freezer is only getting to 5 degrees the icemaker will not cycle. In that case the problem would be with the refrigerator not the icemaker. If the freezer is getting to 0 degrees then you may want to take that icemaker back and get a replacement. Good luck and I hope I helped. [email protected]

SOURCE: Ice Maker Won't Drop Ice

you have a problem in the module of the ice maker if it is new take it back for a new one

SOURCE: whirlpool gold ice maker problem

• The refrigerator has a duel water valve, one for the ice-maker and one for the water dispenser (if equipped). The valve that the ice-maker relies on may be bad, or it could be the ice-maker itself. 
  
• Another thing that could cause it would be the temperatures in the freezer. The ice-maker will not call for water until it reaches under 15 degrees. 
• In addition, check the water tube behind the ice-maker to make sure it is not frozen, blocking more water from entering. 
• note: The water does not go to the ice-maker or thru the filter unless the ice-maker turns on the water valve.
  

SOURCE: Whirlpool Ice Maker Won't release ice

Jetguy77,

I have a 1993 year (16 years old now) Whirlpool side-by-side with icemaker, Model ED22PW. I have had similar problems with the icemaker - water goes in, freezes, but ice does not eject from tray. It has happened to this unit 2 times since 1993. It turns out the problem is not the thermostat. It is the icemaker motor module. The icemaker has a small synchronous (clock) motor that rotates the ice ejector. When it goes bad, the ejector does not rotate, either because the module timer had failed or the motor itself has failed. The solution is to go to your nearest applinace parts dealer and by a new "icemaker motor module" for Whirlpool Model (your model here). Mine cost $58.85 the last time I replaced it in 2006. To install the new module, you will need to remove the icemaker from the refrigerator. Mine has 3 screws that attach it to the side. Also unplug the power & control cable. The water tube slides out when you pull the unit forward. When you get it out, it is then easy to remove the motor module and insert the new one. You may have to reset the timer on the module to get the tray to fill completely.

SOURCE: Ice maker has quit making ice

Lower the freezer temp. The icemaker won't come on until the temp is low enough.