Bosch Error Code E23 — Error Code E23

Service Guy AI • Washer • Medium severity • Intermediate skill • ~30 min repair

What Does Bosch Error Code E23 Mean?

Bosch washer: Error Code E23

This is a medium-severity fault. The machine may complete the current cycle but is signalling a problem you should resolve before it escalates.

Possible Causes (5)

Bosch engineers identify the following root causes for fault code E23. Work through them in the order shown — they are listed from most common to least common.

1. Blocked drain pump
2. Faulty pressure switch
3. Clogged drain hose
4. Door interlock issue
5. Control board malfunction

Step-by-Step Troubleshooting (6 steps)

Follow this sequence to diagnose and clear Bosch error code E23. Power down and unplug the machine before any internal inspection.

1. Disconnect power before servicing.
2. Check for blockages in the drain pump.
3. Inspect the pressure switch for proper operation.
4. Examine the drain hose for clogs or kinks.
5. Test the door interlock for functionality.
6. If issues persist, check the control board for faults.

Required Parts

Have these Bosch OEM part numbers ready before starting the repair. AAdvantage Laundry Systems carries verified parts for every code in this database.

• Drain pump
• Pressure switch
• Drain hose
• Control board

Diagnostic Test Mode

Enter Bosch diagnostic test mode: Press and hold the 'Start' and 'Pause' buttons simultaneously for 5 seconds.

Skill Level & Repair Time

This repair is appropriate for an experienced laundromat owner or in-house technician. You should be comfortable removing service panels, reading wiring diagrams, and using a multimeter to test continuity and voltage. Plan for approximately 30 minutes of active repair time once parts are on hand.

Get AI-Powered Diagnosis

If the steps above don't resolve Bosch E23, run a free Service Guy AI diagnosis. Upload a photo of the error display and get an AI-generated repair plan tied to your exact Bosch model number, including supplier links for required parts and on-call technician escalation.

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