The E52 error on your Frigidaire washing machine means the control board has detected a communication or motor tachometer signal problem, usually tied to the drive motor not sending correct speed feedback. Most cases can be fixed by checking the motor wiring and connections before replacing any parts.

Error code E52
Meaning Motor tachometer signal error or lost communication between the motor control unit and main control board
Severity Medium — washer may still run but won’t complete cycles reliably
Time to fix 20–45 minutes
Tools needed Multimeter, screwdriver set

What the E52 error means

The E52 code appears when the washer’s main control board loses the speed feedback signal it expects from the drive motor’s tachometer. This signal tells the board how fast the drum is spinning so it can adjust motor speed for wash and spin cycles accurately.

Without a clear tachometer signal, the control board can’t safely manage motor speed, so it stops the cycle and displays E52 as a safety measure. This is often a wiring or connection issue rather than a failed motor, so it’s worth checking the simple causes first.

Common causes

  • Loose or disconnected wiring harness between the motor and control board
  • Faulty or worn motor tachometer sensor
  • Damaged or corroded connector pins at the motor plug
  • Main control board malfunction or software glitch
  • Failing drive motor with internal wear
  • Excessive load causing motor strain and signal interference

How to fix the E52 error

  1. Power cycle the washer: Unplug the machine for 5 minutes, then plug it back in. This clears temporary control board glitches that can trigger E52 falsely.
  2. Check the motor wiring harness: Unplug the washer, remove the back panel, and inspect the wiring between the motor and control board for looseness, fraying, or corrosion. Reseat any loose connectors firmly.
  3. Test the tachometer sensor: Use a multimeter to check resistance on the tachometer wires per your model’s service manual. Replace the sensor if readings are out of range or inconsistent.
  4. Inspect the motor connector pins: Look for bent, corroded, or pushed-back pins at the connector. Clean contacts with electrical contact cleaner and ensure a snug fit.
  5. Reduce load size: Run a small, balanced load to see if the error persists. Overloading can strain the motor and disrupt tachometer readings.
  6. Replace the drive motor or control board: If wiring and sensor checks pass but the error continues, the motor or control board may need professional replacement.

FAQ

Can I keep using the washer if it shows E52?
It’s best not to. The washer may stop mid-cycle or damage the motor further if you keep running it with this error active.

Does E52 always mean the motor is broken?
No. Loose wiring or a dirty connector is a common cause and can often be fixed without replacing any parts.

Is E52 related to other Frigidaire error codes?
It’s specific to washing machines, but if you also own a Frigidaire fridge, codes like the Frigidaire EF Error Code or Frigidaire CA Error Code work on a similar principle of sensor communication faults.