After fixing a defrosting problem in the freezer section(Hotpoint side by side), need to put icemaker back. How to reassemble the auger in the icemaker?

SOURCE: Hotpoint CTX21DA defrost heater not working

Heater coil can be checked with a continuity meter, just be sure to unplug the unit first. Before you do anything, locate the defrost timer which is under the control panel in the fridge at the top in the back. There is a little white plastic plug cover a small hole, remove that and you will see the manual advance device. You can only turn it one way due to its design, so using a flat bladed screwdriver that fits the device turn it slowly until you hear a click. then listen in the freezer for sizzling noises as the heater warms up. If you hear the noise you will need to replace the defrost timer, part is available on line. If it doesn't activate the timer then check the continuity on the heater element and the defrost thermostat. (You will have to cut the wires on the thermostat to accomplish this) and check it for continuity. The thermostat needs to be frozen to read properly otherwise it will appear to be open so leave it in a freezer for a bit then check it out. all the parts are available online, just google for refrigerator parts and look for your model.

SOURCE: I have a Hotpoint HSS25IFMD WW sise by side

A thermistor is a 2" torpedo looking piece with 2 wires attached to it . The defrost bimetal , a 1" round aluminum piece , snapped onto the coils , with 2 wires , should be replaced when replaceing the heater . This bimetal could be the problem . To test the defrost system , remove the main control board cover . The blue plug with 3 wires to it needs to be connected . Looking at the plug , the wireing will look like this : l l l . Lets call the terminals 1 2 3 . Useing a piece of insulated wire with both ends stripped , insert one end into terminal 2 and the other end into terminal 3 . The heater will come on if both the heater AND bimetal are good . If you put a new heater in and it wont come on , and you do this test , then the bimetal has to be bad . If your terminology is correct , you have 2 thermisters in the freezer . One on top of the coils ( evaporator sensor ) and one at the bottom by the drain pan ( freezer temp sensor ) . Wouldn't hurt to replace both if you replaced one .