Freezer is working OK but fridge is warming up - would this likely be a control board problem?

SOURCE: WHIRLPOOL CB18M FRIDGE FREEZER

3 things to check. If you didn't adjust the damer from the freezer to the refrigerator, like closed it off. Is the freezer fan running? The fan blows air from the freezer to the refrigerator section. Some fans shut off when the door is open so you may have to push in the door switch to check this out.
Look for ice on the back wall, of the freezer section, If present then the defrost cycle is not working. The evap. coil is icing up and there is no air blowing into the refrigerator. Set the thermostat back to the normal setting it just causes a longer run time on the freezer section.

SOURCE: top of fridge warm but bottom freezer working ok

there is also a fan in the freezer compartment which if broken will cause this problem. you need to check that both fans are working. please refer to other fridge posts here re repairing/ replacing the freezer fan- there is a document here which shows you exactly what you need to do. important thing is to switch off the appliance first and leave the freezer door open for about 20 minutes before attempting to remove the back cover ie let it warm up first, so that you don't break any of the panels.

SOURCE: GE Fridge, Compressor not getting power from mother board

I asked that because in most cases, when it is a problem in a motherboard, it is likely a power surge or lightening. I can also tell you that when it comes to mother boards and component level, likelihood, it isn't transistors or anything unless it smells or looks burned. Most shops would just replace the motherboard and ship it as repaired becaue the cost of the IC isn't worth the possibility of something in another IC on the same board knocking iit out again. Short of plug and play, you have no real way of proving this board good/bad. You might try EBAY with your model number to see if you get lucky. I just got rid of an electronic stove because the control board went bad. New board was $150 with a possibility of it going out in 6 months. As I am not made of money, I now have a gas stove. I you could, please rate this as a fixya as I am just being honest and saving you time and aggrivation. Good luck

SOURCE: fridge is warm even when i adjust temp. control.freezer is good.

if your fridge has 2 set of dials one numbers and the other letters than you need to adjust the dial that has letters on it. If the fan in your freezer is not blowing, then it won't force the cold air from the freezer to the fridge. Make sure fan blows then adjust the letter knob.

SOURCE: The temperature controls for the refrigerator are not responding. The freezer controls respond just fine. My fridge is set to 34 and I need to get it back to 37 but it won't change the numbers.

please switch off your refrigerator for at least 8 hrs. than again switch it on. if your problem is not cured than it is sure that your refrigerator have the blower problem because for this reason only, the problem arrises ....... please visit your service authority...........have a nice day:-)