Whirlpool Refrigerator GT19DKXHW00 overcooling

[DiggerTO]

Hi all,  new to the forum...

I have an old refrigerator that I have been trying to get back into shape.  I originally had a defrosting issue which was repaired with a new defrost thermostat.  Now that the defrost cycle is working again, I am finding that the fridge is running continuously (fridge down to 32F, freezer -7F).  I had the thermostat control set at the warmest possible setting (one more slight turn and it would switch to off) but it keeps cooling.  I decided to replace the thermostat control which was straightforward.  My problem is that I still have the exact same problem so not sure what else to check?  My expectation is that at the recommended settings the fridge should be shutting off somewhere around 37-38F but mine keeps going even with a new thermostat control at the warmest possible setting.  I would appreciate any advice.  Thanks.

[DiggerTO]

I guess everyone is as stumped as me...

[vee8power]

I'm thinking the thermostat bulb end is in the wrong place or there are parts missing near that area, or the door is not sealing well.

Edited June 29, 2023 by vee8power

[DiggerTO]

Thanks.  The thermostat sensor wraps around a plastic piece that snaps in to a slot in the top back of the fridge so should be in the place it was designed for.   I don't see any issues with the fridge seal.  I'm beginning to wonder if new thermostat also bad...Also looking in to these thermostat adjustment screws...