Whirlpool refrigerator not cooling: how to find the cause
By Daniel Brooks, Home maintenance writer and appliance troubleshooting specialist based in Charlotte, NC. Reviewed [date — human adds].
Quick answer
A Whirlpool refrigerator that's not cooling is most often a setting, a blocked vent, or a dirty condenser coil, the same as most brands. But a compressor that hums and clicks without ever starting points to something specific and identifiable: the start relay or the start capacitor.
⚠
Safety first
Unplug the unit before accessing the coils or the compressor compartment. The compressor can stay hot for a while after it's been running, so give it a minute before you touch anything near it.
Work through it in order
1
Check settings and sabbath mode
Confirm the temperature settings haven't been bumped. Then check whether sabbath mode is active, a feature that changes how the lights, displays, and some cycling behavior work to accommodate religious observance requirements, according to Whirlpool's own product documentation (Whirlpool, "What Is Sabbath Mode?"). It doesn't stop cooling on its own, but it's an easy thing to activate by accident, and it's worth ruling out early alongside the more obvious setting checks.
2
Check vents for blockage
Check both the fridge and freezer vents for anything blocking them, a milk carton pushed too far back, a bag of frozen vegetables leaning against the opening. Because these vents carry the cold air the whole unit relies on, even one partially covered opening can leave both compartments running warmer than they should.
3
Clean the condenser coils
Pull the unit out and look at the condenser coils, usually along the back or bottom panel. A buildup of dust and lint acts like insulation, and the coils end up working harder to shed the same amount of heat. A coil brush or a vacuum's crevice tool handles this in a few minutes. Six months between cleanings is the figure that shows up most often in general appliance-care advice, but Whirlpool's own documentation for your model is worth checking before locking in that number.
4
Listen for the compressor clicking or humming without starting
This is the Whirlpool-specific check worth doing before assuming the worst. If the compressor makes a clicking or humming sound but never fully starts, that's a commonly reported symptom of a failed start relay or start capacitor, small components mounted near the compressor that give it the extra electrical push it needs to start running. An iFixit repair guide written specifically for this Whirlpool component notes that a relay clicking repeatedly every few minutes without the compressor catching is a recognized sign that the relay itself, rather than the compressor, has failed (iFixit, "Whirlpool Refrigerator Start Relay Assembly Replacement"). It's a well-defined, relatively affordable part-replacement job, though confirming it usually calls for basic multimeter testing.
5
If the compressor doesn't run or make any sound at all
With coils, vents, and settings already checked out clean, and no clicking or humming from the compressor whatsoever, this points to a broader electrical or compressor failure. That's a job for a technician.
Why a clicking or humming sound is actually good news
It's worth reframing this symptom rather than just noting it. A compressor that clicks or hums but won't start usually rules out the more expensive problem, a failed compressor, in favor of a smaller and cheaper one, the relay or capacitor. Most generic troubleshooting lists don't make this distinction clearly, but it matters for how worried you should be and what the repair is likely to cost.
When to call a technician
Bring in a technician once you've ruled out settings, vents, and coils and the unit is still warm, if a relay or capacitor issue seems likely (most owners have this tested and replaced professionally even though the part itself is inexpensive), or at the first sign of a burning smell.
Real photo of a Whirlpool refrigerator's control panel.
PHOTO — human adds
Real photo of condenser coils being cleaned, or the compressor compartment area.
FAQ
My Whirlpool refrigerator's compressor clicks or hums but won't start. What does that mean?
This is a commonly reported sign of a failed start relay or start capacitor, small components that give the compressor the initial electrical push it needs to start running. It's a relatively affordable, well-understood repair, and importantly, it usually means the compressor itself is still fine.
What is sabbath mode on a Whirlpool refrigerator, and could it explain a cooling problem?
Sabbath mode changes how the unit's lights, displays, and some cycling behavior work to comply with religious observance requirements, and it's occasionally activated unintentionally. It doesn't stop cooling entirely, but checking your control panel settings is still worth ruling out early alongside other setting-related causes.
How much does it cost to replace a refrigerator start relay or capacitor?
This is a smaller, more affordable part compared to a compressor replacement, though exact pricing varies by model and whether you hire a technician or do it yourself. A technician visit is generally recommended for this repair even though the part itself is inexpensive, since accurate testing requires a multimeter.
How often should I clean the condenser coils on a Whirlpool refrigerator?
There's no single official number that applies to every model, but roughly every six months comes up most often in general appliance-care advice. Whirlpool's documentation for your specific model is worth a look if you want a confirmed interval rather than a rule of thumb.
