Bosch Washer Error Code F34: Meaning and Fix
Reading the washer display
On a washer the code appears on the digital display or as a pattern of flashing cycle lights. Note it exactly, including any dashes or sub-codes, then unplug the washer for five minutes and run a short drain cycle to see whether it returns. Bosch shows the code with a leading E and a number on both dishwashers and washers.
Bosch (part of BSH Home Appliances) uses E-numbered codes on dishwashers and washers. Its dishwashers share control platforms with Thermador and Gaggenau, so the same fault can appear on those brands. The codes apply to model numbers such as SHPM65Z55N, SHE53T55UC and WAT28400UC; check the label on your unit to confirm yours.
What causes F34
- A door latch or lock assembly that is worn, broken or not engaging
- Wiring or connector damage between the latch and the control board
- Bent door hinge so the strike misses the latch
- A door switch or strike that is misaligned or has failed
How to fix it
- Open and firmly close the door, checking that nothing (towel, rack, detergent box, clothing) is keeping it from latching.
- Look at the latch hook, strike and door seal for cracks, bent metal or detergent build-up and clean or straighten as needed.
- Open the door fully and check whether it sags on the hinge.
- Switch the power off and inspect the latch connector and harness for loose pins or burn marks.
- Test the door switch or lock for continuity with a multimeter while operating the latch by hand.
- Replace the latch or switch assembly if it fails, then run a short cycle to confirm the door locks and the code clears.
Parts you may need
| Part | Part no. | Buy |
|---|---|---|
| Washer Door Seal | 00361127 | Find part |
Part numbers are OEM references; confirm fit by your model number before ordering. Some links are affiliate links; we may earn a commission at no extra cost to you.
Questions
What does error F34 mean on a Bosch washer?
The lock did not engage when the cycle started. Exact behavior can vary by model and software version; confirm against your own manual.
Can I keep using my washer while F34 is showing?
No. The machine will refuse to run, and forcing a door interlock is unsafe.
How do I clear F34, and can I fix it myself?
Cancel the program, switch the appliance off and leave it unplugged (or the breaker off) for about five minutes, then restart. The code only stays cleared if the underlying problem is fixed, so work through the steps above. This one is usually a do-it-yourself job with basic tools.
Other Bosch washer codes
Sources
Part numbers are OEM references; confirm fit by your model number before ordering. Meanings compiled from manufacturer and parts-retailer documentation; see sources below. Unplug the appliance before opening it.
Applies to models including WAT28400UC, WAT28402UC, WAW285H1UC, WAP24200UC.