KitchenAid Refrigerator Not Cooling: Causes and Fixes
Quick Answer
When your KitchenAid stops cooling, start by checking if the condenser coils are clogged with dust or if the evaporator fan is spinning. These two components are responsible for nearly 80 percent of cooling failures I encounter in the field.
If you ignore this, you're looking at spoiled food within 24-48 hours and a compressor that might cook itself trying to compensate. I've seen people put it off for a week and end up with a $600 compressor replacement instead of a $15 start relay. The good news is that most of the time it's something you can fix yourself in under an hour.
OK so here's the deal with KitchenAid cooling failures. These units share a platform with Whirlpool and Maytag, so a lot of the same failure patterns show up across all three brands. The most common stuff I see is dusty condenser coils and a rattling start relay. Honestly, I had three of these calls last week alone, and two of them were just dirty coils.
Most Likely Causes
Based on aggregated repair data, here is the probability breakdown for this error code:
Dirty Condenser Coils45%
Failed Evaporator Fan25%
Faulty Start Relay15%
Defrost System Failure10%
Main Control Board Issue5%
Symptoms You May Notice
The freezer is fine, making ice, nice and cold, but you open the fridge door and it's basically room temperature in there.
There's a solid sheet of frost or ice covering the entire back wall of the freezer compartment, way thicker than normal.
You can hear a clicking sound from the back of the fridge every three to five minutes. Click. Silence. Click. Silence. That's the compressor trying and failing to start.
The compressor is running non-stop but the temps just keep rising, motor is hot to the touch on the back of the unit.
Warm air actually blowing from the bottom front of the fridge near the toe grille instead of the usual slight coolness.
Can you reset a Kitchenaid refrigerator to clear the COOLING-FAILURE code?
Unplug the refrigerator from the wall outlet. Wait a full ten minutes, not two, not five. Ten. This lets the control board fully discharge and reset. Plug it back in and listen for the compressor to kick on within the first minute or two. Set both temps: fridge to 37°F and freezer to 0°F. Give it four to six hours before you check temps with a thermometer. If it's still not cold after that, you've got a mechanical issue that a reset won't fix.
Tools Required for Diagnosis
Phillips #2 screwdriverFlat-head screwdriver (for prying panels)Vacuum with brush attachmentAppliance coil cleaning brushMultimeter (with ohms and continuity settings)Flashlight or headlampTowels (for defrost water)Thermometer (to verify temps after repair)
Diagnostic Checklist
Follow these steps in order. We start with the easiest external fixes before opening up the machine.
ComponentComponent Under Test
Expected Range10–30 ohms
ConditionIf Open (OL) or infinite, replace component.
Frequently Asked Questions
Why is my KitchenAid refrigerator making a clicking noise every few minutes?
That's your compressor trying to start and failing. The start relay is almost always the culprit. Pull that little cube off the side of the compressor and shake it. Hear rattling? That's the bad news, but the good news is a new relay runs about $15-20 and takes five minutes to swap in. I carry these on my truck because I replace them constantly. If the relay isn't rattling but the clicking keeps happening, the compressor itself might be failing, which is a much bigger repair conversation.
Can I fix a cooling issue by just unplugging the fridge?
Sometimes, yeah. If the control board glitched or the unit got stuck in a weird state after a power flicker, a hard reset actually works. Unplug it for ten full minutes. If it comes back cooling normally and stays that way, you're good. But if it's not cool within a few hours of the reset, stop waiting and start diagnosing. You've got a mechanical or sensor failure that no amount of unplugging will fix, and every hour you wait is food getting warmer.
Why is there ice built up on the back wall of my freezer?
Defrost system failure. The heater that's supposed to melt frost off the evaporator coils every few hours either burned out or the thermostat that controls it went bad. Once that ice builds up thick enough, it blocks all airflow and the fridge section goes warm even though the freezer feels OK. You have to manually defrost it completely first, like with towels on the floor and the door open, before you can even get to the parts to test them. Budget about an hour for that process.
Is it worth repairing a KitchenAid refrigerator that's 10+ years old?
Honestly, usually yes. KitchenAid built these units on the same platform as high-end Whirlpool models and they're genuinely solid machines. If the repair is under $400-500, I almost always say fix it. A new fridge of comparable quality is $1,500-2,500 and the newer ones have way more electronics that can fail. The old ones are simpler. A start relay or evaporator fan is a $20-60 fix. Even a defrost heater kit is usually under $80. The only time I say replace it is when the compressor fails on a really old unit.
How do I know if my compressor is dead or if it's just the start relay?
Shake the relay first. If it rattles, replace it before assuming the compressor is bad. If the relay doesn't rattle and still has no continuity, replace it anyway, they're cheap. If you put in a new relay and the clicking still happens, now you're looking at a compressor issue. You can confirm by checking if the compressor gets hot but doesn't run, or if it hums loudly and trips thermal protection. Compressor replacement on a KitchenAid runs $400-700 in parts and labor, so at that point you're having a real conversation about age and replacement.
Why is my freezer cold but my fridge is warm?
Nine times out of ten, that's either a dead evaporator fan or a frozen-over evaporator coil from a defrost failure. The freezer section still feels cold because the coils are in there, but without working airflow, the cold air never makes it to the fridge side. Check that the fan is running by holding the freezer door switch in with your finger and listening. If it's silent or grinding, that's your fix. If the fan runs but there's a thick wall of ice on the back of the freezer, you've got a defrost problem.
Models Known to Experience COOLING-FAILURE Errors
This repair applies to most Kitchenaid refrigerators with this error code. Common model numbers include: