Refrigerator Not Cooling or Compressor Not Starting? Control Box W11595220 – Fix Temperature & Cooling Failures Fast
When your refrigerator stops cooling, runs constantly, or the compressor won’t cycle correctly, the main control box is the most common root cause. In most Whirlpool-platform refrigerators, this is caused by a failed electronic control box. When it fails, the board stops sending correct signals to the compressor, defrost system, and fans — symptoms can mimic a thermostat, sensor, or compressor fault but the board is the culprit. ⚡ Common failure point in Whirlpool-built refrigerators. Part W11595220 is the genuine OEM replacement that supersedes W11476570 and restores full system control with a direct plug-in fit.
❓ Is This the Right Part?
This is the correct fix if ALL of the following are true:
- ✔ Refrigerator powers on — interior light and display respond
- ✔ Temperature sensors and thermistors test within spec
- ✔ Power supply confirmed OK — breaker live, outlet delivering correct voltage
- ✔ Compressor start relay and overload protector test good
- ✔ ONLY problem is no cooling, erratic temperatures, or compressor not cycling correctly
Not sure? Send us your model number — we’ll confirm before you order.
🔧 Common Symptoms
- Refrigerator not cooling or not maintaining set temperature — most common complaint
- Compressor not starting or short-cycling on and off
- Temperature display blank, flashing, or showing error codes
- Fridge running constantly without cycling off
- Defrost not activating — heavy frost buildup on evaporator coils
- Fans not running or running continuously regardless of door state
✔ If these symptoms match, this is the most likely failed component in the system.
✔ In most cases, replacing this control box restores normal operation immediately.
📦 Part Details
- Part Number: W11595220
- Type: Refrigerator electronic main control box — manages compressor cycling, temperature regulation, defrost timer, and fan control
- Replaces: OEM direct-fit control box assembly — supersedes W11476570 (no modification required)
- Brands: Whirlpool, KitchenAid, Maytag, Amana
Before installing the control box, test the compressor start relay and temperature thermistors — both are inexpensive and cause identical symptoms when failed. Replacing a faulty relay or sensor at the same visit avoids a second service call if the board wasn’t the only issue.
⚙️ Installation
Skill Level: MODERATE — 30–45 minutes. Disconnect power at the breaker before starting — control boxes carry line voltage. Locate the control box (typically mounted in the rear upper section or machine compartment), photograph all wiring harness connections before disconnecting, then swap the board and transfer connectors one at a time. Handle the board by its edges only; avoid touching solder points. Reconnect all harnesses fully until they click — partial connections cause intermittent faults. Allow 4–6 hours after installation for the refrigerator to reach set temperature before evaluating performance.
✓ Compatible Models
Confirmed compatible with select Whirlpool, KitchenAid, Maytag, and Amana refrigerator models. Contact us to verify your model number before ordering.
Model hub pages: Contact us with your model number to find your model’s hub page.
💡 Pro Tip
A failed compressor start relay costs under $15 and causes identical symptoms to a failed control box. Shake the relay — a rattle means it’s dead. If the relay tests good and you’re still getting no output voltage at the control box terminals with good input, the board is confirmed failed and W11595220 is your fix. This 5-minute test prevents an unnecessary $134 part order.
✓ 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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