The E64 error on your Frigidaire washing machine means the main control board has lost communication with the motor control unit (MCU). Most of the time this is caused by a loose wiring connection or a faulty MCU, and it can often be fixed by checking connections before replacing any parts.

Error code E64
Meaning Communication failure between the main control board and the motor control unit
Severity Medium — the washer will usually stop mid-cycle and won’t spin or drain properly
Time to fix 15–45 minutes
Tools needed Screwdriver, multimeter (optional, for testing connections)

What the E64 error means

Frigidaire front-load washing machines rely on two boards talking to each other: the main control board, which manages the wash cycle, and the motor control unit, which drives the motor. When these two stop communicating properly, the machine throws an E64 code and halts the cycle to prevent damage.

This isn’t always a sign of a broken part. Loose wiring, a tripped connector, or a temporary power glitch can trigger the same code as a genuinely failed board. That’s why it’s worth working through the simple checks first before assuming you need a replacement part.

Common causes

  • Loose or disconnected wiring harness between the control board and motor control unit
  • Corroded or damaged connector pins
  • A power surge or brief outage that disrupted communication mid-cycle
  • Faulty motor control unit
  • Faulty main control board
  • A failing drive motor sending inconsistent signals back to the MCU

How to fix the E64 error

  1. Power cycle the washer: Unplug the machine for 60 seconds, or switch off the breaker, then power it back on. This clears temporary glitches and resets the communication link.
  2. Check the wiring harness: Unplug the washer, remove the rear or control panel, and inspect the wiring between the main control board and the motor control unit. Reseat any loose connectors firmly.
  3. Inspect connector pins: Look for corrosion, bent pins, or scorch marks on the connectors. Clean lightly with a dry cloth or contact cleaner if needed.
  4. Test with a multimeter: If comfortable doing so, check continuity across the wiring harness to rule out a broken wire hidden inside the loom.
  5. Inspect the motor control unit: Look for burn marks, bulging capacitors, or a burnt smell. These are signs the MCU has failed and needs replacing.
  6. Replace the faulty board: If wiring checks out fine and the error persists, the motor control unit or main control board likely needs replacing. Note down your model number before ordering a part.

FAQ

Can I keep using the washer with an E64 error showing?
No. The washer will typically stop the cycle and won’t spin or drain safely until the communication fault is cleared.

Is E64 always a control board failure?
No. Many cases are fixed by reseating a loose connector or power cycling the machine, so it’s worth checking wiring before replacing parts.

How much does it cost to fix an E64 error?
If it’s just a loose connection, it costs nothing but your time. If the motor control unit or main board needs replacing, parts typically run from £80–£200 plus labour if you hire a technician.