The E29 error on your Frigidaire washing machine means the main control board has lost communication with the motor control unit (MCU). This usually points to a wiring or connector problem rather than a failed part, so check connections before assuming you need a new board.

Error code E29
Meaning Communication failure between the main control board and motor control unit
Severity Medium — washer will not spin or complete cycles until fixed
Time to fix 20–45 minutes
Tools needed Multimeter, screwdriver (Phillips or Torx depending on model)

What the E29 error means

Frigidaire front-load washers use two separate boards to run the machine: the main control board, which handles the display and cycle selection, and the motor control unit, which drives the motor directly. The E29 code appears when these two boards stop talking to each other, usually because of a loose connector, damaged wiring harness, or a fault in one of the boards themselves.

This is different from motor-specific fault codes and is more about the communication link failing than the motor itself being broken. It’s similar in nature to communication errors seen on other appliances, such as the Frigidaire EF Error Code on refrigerators, where a sensor or board simply stops reporting correctly.

Common causes

  • Loose or disconnected wiring harness between the main control board and motor control unit
  • Corroded or damaged connector pins from moisture or heat
  • A blown fuse or damaged trace on the motor control unit
  • Faulty main control board unable to send or receive signals
  • A pinched or chafed wire from installation or vibration over time
  • Power surge or electrical spike that disrupted board communication

How to fix the E29 error

  1. Power cycle the washer: Unplug the machine for 5 minutes, then plug it back in. This clears temporary faults and resets the communication link between boards.
  2. Check the wiring harness: Unplug the washer, remove the rear or top panel, and locate the harness connecting the main control board to the motor control unit. Reseat both ends firmly.
  3. Inspect connectors for damage: Look for melted plastic, corrosion, or bent pins on the connectors. Clean lightly with electrical contact cleaner if there’s buildup, or replace the harness if damaged.
  4. Test continuity with a multimeter: Set the meter to continuity mode and check each wire in the harness end to end. A wire with no continuity needs replacing.
  5. Check the motor control unit fuse: Some MCUs have an internal fuse that can blow from a power surge. If accessible, test it with a multimeter and replace if it shows no continuity.
  6. Replace the faulty board: If wiring checks out fine and the error persists, the main control board or motor control unit itself may need replacing. Test with a new or known-good part if possible before buying.

FAQ

Can I still use my washer if it shows E29?
No. The washer typically won’t spin or complete a cycle until the communication error is cleared, since the motor won’t receive commands properly.

Will unplugging the washer fix E29 permanently?
Sometimes, if it was a one-off glitch from a power surge. But if the code comes back after a reset, there’s likely a wiring or hardware fault that needs physical repair.

Is E29 expensive to fix?
Not usually. Most cases are a loose or damaged connector, which costs little to nothing to fix. A replacement control board is the pricier option but is less common than a wiring issue.