Ice Maker come in many different types & chilled water door assembly is not
part of the ice maker. Most of your problems with ice makers can be 2
1) A water valve problem if the cubes have gotten smaller in size over
time.
2) Is a temerature problem with the refrigerator itself & not the icemaker
2 A Is clean under the refrigerator This allows the frezzer to get colder
& the Icemaker will cycle more.
2 B Is that the refrigerator has a air flow problem or a defrost problem.
CALL J & B APPLIANCE SERVICE