MBB1952HEW14 Maytag Refrigerator - Overview

A very easy fix took all of five minutes

Start by removing the freezer door and inner baskets so you have some space. Next, take out the ice maker by removing the 3 screws that attach it to the side and unplug it from the harness. Then the cover for the thermistor and the fan vent should be popped off carefully leaving the back cover only. The back cover is held on by 4 screws, one in each corner. Remove all 4 screws and carefully loosen the back cover by pulling the top forward and laying it level to pull it out. Behind the cover are the coils and other components. If the coils are covered with ice they should be defrosted by using a blow dryer. Once the ice is clear, the thermostat is located towards the top left clamped onto a copper pipe that circles up and around. Carefully pull it off the pipe and cut the wires making sure you leave enough to reattach the new ones with a butt connector. Strip about 1/4 inch of insulation off the wires and crimp both ends into the butt connector making sure they are tight. Heat shrink is highly recommended. Clamp the new thermostat to the copper pipe where the old one used to be and your almost done. Replace the back cover the opposite of the way it was pulled out by putting it in flat with the bottom part in front. Once it is all the way to where it needs to be, push the top upwards while sliding the bottom downwards, then push it in flat against the back. It can be bent slightly if needed. Put the screws back in that hold it on and replace the plastic covers. Then reinstall the ice maker being sure the hose for the water is correctly positioned so that the water goes into the ice maker. Turn it back on and put the baskets and door back on and you're done.

I used a flat-head screwdriver to pop out the old light rocker switch. Then, I unplugged the wires, plugged them into the new light rocker switch, and then popped the new switch into the hole. That's it! Lights began working again.