Whirlpool Appliance Control Unit (ACU) / Washer Electronic Control Board W11550453
Genuine Whirlpool appliance control unit used as the main electronic control board in select front-load washing machines. The board manages washer functions including filling, washing, draining, spinning, sensor communication, and diagnostics.
❓ Is This the Right Part?
This is the correct fix if ALL of the following are true:
- ✔ Door latch assembly is confirmed functional and locking correctly
- ✔ Wiring harness connections to the board are intact and fully seated
- ✔ Power supply and outlet confirmed delivering correct voltage
- ✔ Error codes persist after power cycling and all other components have been ruled out
- ✔ ONLY problem is washer dead, unresponsive, or showing persistent error codes not resolved by other components
Not sure? Send us your model number — we'll confirm before you order.
🔧 Common Symptoms
- Washer won’t power on or respond to any controls
- Dead or completely blank control panel
- Cycles won’t start or stop randomly mid-wash
- Persistent error codes that return after power cycling
- Specific functions (spin, drain, fill) not responding
- Washer fills but won’t advance to the next cycle stage
✔ If these symptoms match and other components have been ruled out, this is the most likely failed component.
✔ In most cases, replacing this control board restores full washer operation immediately.
✅ Cross Reference Information
Part Number: W11550453
Part Details
- Part Number: W11550453
- Part Type: Appliance Control Unit (ACU) / Washer Electronic Control Board
- Manufacturer: Whirlpool
- Appliance Type: Washer
⚙️ Installation
Skill Level: Moderate — 30 to 60 minutes. Disconnect power before beginning — this is a static-sensitive PCB. Ground yourself by touching an unpainted metal surface before handling the board. Access the control board through the rear panel or top panel depending on your model. Photograph all harness connector positions before disconnecting, swap the board, reconnect all harnesses per your photo, and run a diagnostic cycle to confirm correct operation before reassembling.
Verified Compatible Models
MHW6630HC3, MHW6630HW3, MHW6630MBK0
Model Families: MHW6630 series
Fitment reminder: Match the complete appliance model number before ordering.
💡 Pro Tip
Control boards are extremely sensitive to electrostatic discharge — even a small static shock can damage the board before it’s installed. Always ground yourself before handling, never place the board on carpet or plastic, and photograph every harness connection before disconnecting anything. A single misrouted connector produces the same symptoms as a failed board and is the most common cause of a “bad” new part return.
✅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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Kitchener, Ontario N2E 1W8
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