I am trying to keep the repair costs reasonable for our family's washer, so I am handling this troubleshooting methodically to rule out variables before buying more parts.
The Short Version: My original board hits an F11 error. Because there is absolutely no motor attempt or hum before the F11 triggers, I suspect a CCU to MCU communication issue, making the CCU the primary suspect. I bought a used replacement CCU listed as WPW10137701 on eBay, but it arrived missing the secondary Service Code sticker entirely. The replacement board powers up, locks the door, and then immediately freezes the UI.
Unit: Maytag Neptune MFW9600SQ0
Original behavior (Original CCU has the W10137701 Service Code sticker attached):
- Cycle starts
- Door locks
- Small water fill
- F11 error pops up
- No motor attempt at all, completely silent (Leading to my theory of a CCU to MCU communication failure)
Action taken: Replaced CCU with the used eBay board. The replacement board has the generic Type 10824 hardware sticker, but the secondary Service Code sticker is completely missing.
Behavior after CCU swap:
- Powers on
- Locks door
- Only last selected cycle light shows
- UI becomes completely unresponsive and freezes immediately
My Questions for the Experts:
- Since the eBay board is missing the Service Code sticker, does an immediate UI freeze heavily point toward a firmware mismatch from a seller misidentifying a generic Type 10824 board?
- Given the original F11 symptom of zero motor sound before failure, is my logic sound in suspecting the CCU over the MCU?
- Does anyone have a trusted source for a tested, used board with a verified W10137701 Service Code sticker? I am trying to stay around the $70 mark that this mislabeled board cost. Direct links to verified listings are highly welcome!