GE Profile refrigerator side not cold enough
I have a GE Profile (Model PZS25KSEBFSS). It has digital controls for the freezer and refrigerator side. I had them set to 0F and 37F, respectively. I’m constantly checking the temperature when I walk by. Lately I noticed that the temperatures had risen to about 3F and 43F. Thinking that maybe it was just because the defrost heater was on, I ignored it. Several days later, it was still the same. I lowered the temperature controls as low as they would go for each side; -6F for the freezer and 34F for the fridge. After a day, the temperatures came down some. The freezer went to something like -3F and the fridge was about 40F. Still not right, because the temperature doesn’t match what I have it set to. Right now, set to -3F and 34F, the freezer is at 0F and the fridge is at 40F. I can’t get the fridge to go any lower. It seems that the temps are off by some offset; the freezer by 3 degrees and the fridge by 6 degrees, regardless of what they’re set to. As long as it’s cold enough (regardless of the setting) I guess I’m okay with that for now. However, I’ve noticed something else going on (I think). It seems like the upper part of the fridge is warmer than the lower part. Canned sodas in the top shelf of the door don’t feel as cold as bottle drinks in the bottom shelf of the door. To test this, I moved a canned soda to the bottom shelf. I can definitely tell now that the soda on the bottom shelf is now colder than the sodas on the top shelf. Also, the upper food shelves seem ‘warmer’ than the lower section of the fridge. I felt a steak that’s sitting on the middle shelf and it feels dangerously ‘not cold’. Jars of pickles on the top shelf seem cold, but not cold enough. Lastly, when I put my hand on the plastic on the inside back of the fridge side (right next to the vent slots), it doesn’t even feel cold. Is this an issue with the evaporator fan motor? Is there only 1? The reason I ask is because of the temperature variance from the top to the bottom sections of the fridge. Or is this top/bottom difference just a result of ‘heat rises and cold falls’? Why can I get the temperatures adjusted down, but not consistent with the temperature that they’re actually set to? Could this be an issue with the damper door between the two sides?
Update (09/30/2018)
UPDATE: After my original post, I have new information. I noticed a block of cheese that was in the back of the deli drawer was partially frozen. When I looked behind the drawers, I saw ice on the back wall behind the deli drawer. I also learned that when the door is open, the fan that is behind that back panel (the other evaporator fan, I assume) does not run. When I press the door/light switch, the fan motor comes on but I don't really feel the air coming out of the vent slots. Could this be a case of the evaporator coils being frozen over? The temperature in the freezer is 0F and 40F in the fridge. At one point, the fridge side went up 41F but came back down to 40F and has been there since. Although the temperature display shows the same thing that it did previously, it now feels colder in the top part than it previously did at the same temperature reading. Where is the sensor taking the reading.
crwdns2934109:0crwdne2934109:0
crwdns2944067:07crwdne2944067:0
UPDATE: I've looked at the exploded view and don't see any other relevant components - specifically some kind of defrost heater that should prevent the evaporator coils from freezing over. Last night, when I came home, I checked the temperatures as I walked past the fridge. They were still at 0F and 40F. Within of couple of hours (and minimal opening and closing of the fridge-side door) the temperature climbed to 51F. Even still, everything seems plenty cold. This morning the the fridge-side temperature is back down the 40F. The is still the same ice formation on around the vent slots on the back wall. I don't think any ice melted during the elevated temperature.
crwdns2934271:0crwdnd2934271:0 Lonnie Barrios crwdne2934271:0
UPDATE TO PREVIOUS UPDATE: Looking at the exploded view, I noticed a part called 'sensor grille'. While in the fridge, I saw this little sensor grille. When I had to move a two-liter bottle of soda out of the way, it occurred to me... I put that soda in there last night (warm from the store) when I came home. It was sitting right up against the temperature sensor grille. That explains the rise in temp (and then the subsequent fall back to what is now 'normal'). I taped sheets of 2-ply toilet paper in front of the vent slots on the back wall. Then I pushed the door/light switch to activate the evaporator fan motor. The motor definitely comes on, but I do not see the slightest amount of air flow coming from the vents. If the blades were obstructed, I would think that I wouldn't hear the motor at all because it wouldn't able to spin. I could be wrong on that, though. With the absence of any kind of defrost heater for the fridge-side, what would cause the evaporator coils to freeze over? A faulty sensor?
crwdns2934271:0crwdnd2934271:0 Lonnie Barrios crwdne2934271:0
Hi, any update on the final situation? found a solution or have to make do with this issue? I have exactly the same issue now right after 2 months of warranty expiration. My fresh food area will be constantly above 45 while freezer fluctuates around 0-10. i changed the main board, still same issue. I dont see frost build up behind the fresh food though, no sure if this is same problem.
crwdns2934271:0crwdnd2934271:0 Chage crwdne2934271:0
Chage... Here's what fixed it for me. I had to remove the plastic cover behind the drawers. There was a lot of ice built up. Once the plastic cover is removed, there is a styro-foam cover over the coils. I carefully used a heat gun to melt the ice enough to remove the foam cover. Be patient with the heat gun and don't let it linger too long in any spot or you'll melt the styro-foam or the plastic back wall. Once the styro-foam (which also houses the evaporator fan) is removed, I could see that the coils were completely frozen in a block of ice. Use the heat gun again. To melt all of the ice. As the ice melts, it will go down the drain hole on the right side under the coils. Again... Patience.
crwdns2934271:0crwdnd2934271:0 Lonnie Barrios crwdne2934271:0
(continued)... The whole process took a couple of hours. Once all of the ice has been removed, re-assemble everything and set the fridge to Turbo Cool. I don't know what is causing the problem, but I see that I originally posted my problem just over a year ago. A few weeks ago, I had to do this exact procedure again. I know it's not the evaporator fan motor because it is definitely working. I can hear it. Also, after clearing the ice, it works great... for about a year. Good luck!
crwdns2934271:0crwdnd2934271:0 Lonnie Barrios crwdne2934271:0
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