E01 Serious Moderate DIY

Bosch Washer E01 — Door Lock Fault

Bosch Washer · Error code E01

What E01 Means

The control board cannot confirm the door is locked. The wash cycle will not start or will pause mid-cycle.

Symptoms

  • Cycle will not start
  • Door light flashes
  • Machine pauses immediately after start
  • Door will not lock

Common Causes

1
Door not fully closed

Laundry or detergent drawer obstructing the door seal.

2
Faulty door lock assembly (PTC interlock)

The PTC element inside the lock has failed and won't hold the latch.

3
Broken door latch hook

Plastic strike on the door is cracked, so the lock can't engage.

4
Wiring harness to door lock loose or chafed

Connector at the top-right of the tub disconnected or pinched.

5
Control module failed to send lock signal

Main PCB output triac for the lock is bad.

How to Fix It

  1. Unplug the washer for 5 minutes to reset the control.
  2. Open the door, clear any clothing from the seal, firmly close, and retry.
  3. Inspect the door strike/hook for cracks; replace the hook kit if damaged.
  4. Remove the top panel and check the lock connector seating.
  5. Test the door lock PTC with a multimeter (should read several hundred ohms cold).
  6. Replace the door lock assembly if no continuity through the interlock circuit.
  7. If lock and wiring are good, the main control module is the next suspect.

Parts You May Need

If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.

Common replacement Door lock interlock assembly View on Amazon→ Common replacement Door strike hook kit View on Amazon→

More Bosch Washer Codes

E02 E02 — Motor Fault E03 E03 — Drain Pump Fault E04 E04 — Water Inlet Fault E05 E05 — Heating Element Fault E06 E06 — Door Lock Circuit Fault E07 E07 — Water Leak Detected (AquaStop)

All Bosch codes → All washer codes →

Verified against manufacturer documentation: bosch-home.com

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician.