Hi,

I have a Maytag MSD2758GEB side by side refrigerator that has stopped cooling. I tried reading through the forum before posting, but haven't been able to narrow my problem yet. My problem is that both the Freezer and Fridge is not cooling. But upon reading this forum, I discovered that the bottom portion of the freezer and fridge is slightly cooler than the top portion. The ice and food in the top portion of the freezer have all melted, while the bottom half is still frozen. Also, the top most drawer on the fridge side is registering 10 degrees higher than the drawer right below it(56 vs 46). I have also noticed frost build up in the back bottom half on the freezer side.

I've pushed the refrigerator out and cleaned the condenser coils. I've also verified the resistance between the three pins on the compressor. If I remember correctly, they were in the range of 5-10 ohms. The condenser fan is running and the compressor is very warm, almost hot, to the touch. I can feel it vibrating softly(not sure if it's working). I can also hear another fan in the back middle area of the freezer side running(a little too loud in my opinion).

Could it be the starter piece attached to the compressor or is it something inside in the back of the freezer side? Any help would be greatly appreciated.

BTW, I've already replaced a water valve in the back, ice maker, and the housing assembly for the ice tray a couple of months back because I had water leaking all over the icemaker and freezing all over inside the top portion. I'm not sure if this is related, but you can't have too much information when it comes to this kind of things. :D

Thanks Denman for the reply. The coils ARE frosted all over. How do I check to see what part of the defrosting system is not working properly?

Hi Simon, thank you for the quick reply.

I ran the continuity tests. The heater element is about 22ohms, and the defrost thermostat(little round thing in the first picture above) is open. I don't know if it's ice cold though because I had just manually defrost the whole thing with a hair dryer and plugged it in about 20 minutes ago. I noticed the evaporator coils are beginning to have some frost starting near the inlet hose. Is that normal? I also noticed that the frost is starting to move through the length of the coil. I guess it's the refrigerant cooling it down right?

What's strange is that before you replied. I had measure the resistance of the defrost thermostat(while warm) and it was about 188kohms while the heater element is also about 22ohms. I also measured the fan motor resistance after defrosted it and it was about 3.0ohms. Thanks for the help.

I measured it again today and it is still zero. The evaporator coils and fins are all covered in frost again(i think more than normal). I already ordered the new defrost heater and temperature sensor. How can i verify that my adaptive defrost control is working properly without waiting to install the new parts? Thanks for all your help. :)

I got the part today and decided to test the defrost thermostat one more time and it has continuity this time. So, I think that is not my problem now, but it is the ADC. I pulled the ADC out and could not find the Test pin. I have L1, Door, Stat, L2, Comp, and HTR in that order. I guess I'll return the heating element and order the ADC. =/