Looked in AppliancePartsPros.com at the trouble shooting guide for my model refrigerator. Found what seemed to be the trouble I was having and ordered the recommended part. Also watched the video for instructions on how to install the part I ordered which was very helpful in that it directed me to the area where I could find the part I needed to replace. Following those instructions, I dismantled the light fixture at the top of the inside of the refrigerator and located the thermistor that I needed to replace. Getting the old thermistor out was the hardest part of the job. Once that was accomplished, the rest was easy. My 14 year old Maytag is now working like new.