GE Double Door Refrigerator GSH25JSXNSS Fan Switching To High Speed and Freezing

[Chetlaham]

Hi, I have a GE GSH25JSXNSS double door side by side refrigerator and freezer where the freezer evaporator fan keeps switching to hi speed. Previously it did this only a few minutes when coming out of defrost or the door was left open for more than several minutes. The past week it has been switching to high speed several times an hour without the door open, and will stay this way for up to 15 minutes. Also, I've noticed things like a gallon of water are freezing on the top shelf where they previously did not. A refrigerator thermometer says the fresh food compartment is dipping to as low as 30*F despite the fridge section being set to number 7 out of 9.

What would cause this? Bad thermistors, control board or dusty condenser coils? Something else? Or just normal for this time of year? Should I just wait to see if it will go away?

 

[vacerator]

Read the GE service manual for any SxS since the year 2000. "Liner protection mode is king!" When ambient air hits frozen plastic, it can crack. The fan is variable speed. I never leave the doors open more than 2 minutes. That makes it defrost sooner and more often. I'd rather have the fan running without the compressor as much as possible.

 

[Chetlaham]

So the fridge knows the gallon water jug is inside it and is compensating?

The evaporator fan 99% of the time only runs when the compressor runs. But if the interior air temp gets to warm, the evap fan will switch to high speed.

Edit ok, that makes sense. It knows if the door has been open for more than 3 minutes and kicks into high speed.

Though I still don't get why its happening with the door closed for several hours without being touched.

 

[vacerator]

Mine is a 2007 model 25.4 cu. ft. Ever since I can recall, the door alarm has gone off every few month's when closed. At this stage, it really doesn't owe us much. I check the temps. occasionally. I can tell when it's ready to defrost because the fan hits the icy evaporator.

 

[Chetlaham]

Sounds like I'm lucky or at least I am in this point in time. 2007 all the way until now is a good run.

 

[phillymatt53]

Ah, you guys with your modern complex (electronic) appliances!
Always some issue seems to surface with things.