Whirlpool Refrigerator Not Cooling? Compressor W11455472 – Restore Full Cooling Fast
A failed compressor is the most serious cause of a Whirlpool refrigerator that has completely stopped cooling — the compressor is the heart of the sealed refrigeration system, and when it fails, no cooling is possible regardless of other components. In Whirlpool and KitchenAid refrigerators, the compressor pumps refrigerant through the sealed system to remove heat from the interior. When it fails, the refrigerator may run continuously with no temperature drop, click on and off rapidly, or go completely silent with no cooling at all. ⚡ High-value failure point in Whirlpool-built French door and side-by-side refrigerators. Part W11455472 is the genuine OEM replacement that supersedes W11208327 and restores full refrigeration system operation.
❓ Is This the Right Part?
This is the correct fix if ALL of the following are true:
- ✔ The refrigerator has power and the fans run normally
- ✔ The start relay has been tested and confirmed failed or replaced without restoring cooling
- ✔ The compressor is confirmed not running, or runs but produces no pressure differential
- ✔ ONLY problem is complete loss of cooling with all other systems functional
Not sure? Send us your model number — we’ll confirm before you order.
🔧 Common Symptoms
- Refrigerator and freezer are both warm — no cooling at all
- Compressor clicks on and off rapidly without running (start relay or compressor failure)
- Compressor is completely silent — no hum, no vibration
- Compressor runs but refrigerator never reaches set temperature
- Refrigerator stopped cooling after a power surge or extended power outage
✔ If these symptoms match and the start relay has been ruled out, this is the correct repair.
✔ Replacing this compressor restores full sealed system operation and cooling capacity.
📦 Part Details
- Part Number: W11455472
- Type: Refrigerator Compressor — OEM Whirlpool replacement
- Replaces: W11208327
- Brands: Whirlpool, KitchenAid
Compressor replacement requires evacuating and recharging the sealed refrigerant system — this is a licensed technician job in Canada and most jurisdictions. While the system is open, replace the filter drier (also called the accumulator or drier) — it is a mandatory replacement any time the sealed system is opened, as moisture contamination will destroy the new compressor. Also replace the compressor start relay with the new unit to ensure clean startup. Never skip the drier replacement.
⚙️ Installation
Skill Level: Advanced — Professional installation required. Compressor replacement involves working with the sealed refrigerant system, which requires EPA/TSSA certification and specialized equipment for evacuation and recharge. Disconnect power and allow the refrigerator to warm to room temperature before beginning. Remove the rear access panel, recover refrigerant, cut and braze the refrigerant lines, install W11455472, replace the filter drier, evacuate the system to deep vacuum, and recharge with the correct refrigerant type and weight per the model data plate.
✓ Compatible Models
Confirmed compatible with WRQA59CNKZ, KRQC506MPS00. Contact us to verify your model number before ordering — compressors are model and refrigerant-specific.
💡 Pro Tip
The compressor start relay is a small plug-in component on the side of the compressor. When it fails, the compressor clicks on and off without running — identical to a seized compressor. Shake the relay: if it rattles, it’s failed. Replacing the relay costs $15–25 and takes 5 minutes with no tools. If the relay is good and the compressor still won’t run, then W11455472 is the correct next step. Always rule out the relay before committing to a compressor replacement — it is the most common reason a compressor appears to have failed when it hasn’t.
✓ Model-Specific Repair Pages
✅Compatibility & Cross Reference
Not sure about your model number? Call 1-877-899-7278 and we’ll help you confirm. All brand names are the property of their respective owners and are used for compatibility reference only.
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