MFX2876DRM00 Fridge not cooling

[Stryped]

My Maytag above is room temp in both freezer and fridge. I think compressor is running as I can feel it vibrate and ‘hums’. But it runs constantly and never stops and gets very hot.

checking resistance with compressor cold is around 7.2 ohms. However, after getting hot it’s around 9.2 ohms. All three poles are the same though.

How and where would I test to prove the compressor and/ or inverter is good or bad?

please help!

[ChipCity]

I've run into the same problem several times on different units.  Could very well be a frost build up on the condensers.  You have remove the access panel to the area, usually it's right behind the frozen food section.  There are a bunch of coils in there that build up ice that's regulated by some heater coils.  If one or more of those heater coils go bad then the ice buildup will propagate and block the cold airflow to both sections of the fridge. Once you get in there you'll want to check continuity on the heater coils, if there is none then it's shot and will need to be replaced.  While you're in there may as well check the air circulation fan to see if that's still running.

I would look up "replacing fridge heater coils for [your specific fridge]" on YouTube.  Should find out how to access that area.  Hope this helps!

[Josh Smith]

how hot is the compressor, should not be more than 30 Degrees or so above ambient temp

 

[16345Ed]

10 hours ago, ChipCity said:

Could very well be a frost build up on the condensers.  You have remove the access panel to the area, usually it's right behind the frozen food section

That would be the evaporator. Not condensers. 

[shaunCD]

It sounds like you're facing cooling issues with your Maytag fridge and true freezer. The fact that the compressor runs constantly, gets very hot, and shows an increase in resistance after heating up suggests a potential problem. To test the compressor and inverter, check the voltage output to the compressor and ensure it's within the manufacturer's specifications. Additionally, examine the start relay and capacitor for any signs of damage. If these tests don't reveal the issue, it's advisable to consult a professional technician for a thorough diagnosis and potential replacement of faulty components.

[16345Ed]

On 9/4/2023 at 1:29 AM, shaunCD said:

Additionally, examine the start relay and capacitor for any signs of damage.

 

On 9/4/2023 at 1:29 AM, shaunCD said:

To test the compressor and inverter, check the voltage output to the compressor and ensure it's within the manufacturer's specifications.

Machines with inverters don’t have traditional start devices. The inverter is the start device. 
 

this is best advice you gave:

On 9/4/2023 at 1:29 AM, shaunCD said:

it's advisable to consult a professional technician for a thorough diagnosis and potential replacement of faulty components.

Diagnosing this issue starts with recording cabinet temperatures, pulling error codes and checking frost pattern on evaporator. Based on these results you can try to determine load of interest to narrow your diagnostic focus.