Bosch Dishwasher E23 Error Code & Drain Pump Replacement in Escondido
Customer Complaint: Bosch Dishwasher Displaying Error Code E23 & Standing Water
A homeowner in Escondido (92025) contacted ETS Appliance Repair after their Bosch 800 Series dishwasher interrupted its cycle, displayed error code E23 on the digital screen, and left standing dirty water at the bottom of the tub.
Master Technician Field Diagnostics
On Bosch dishwashers, Error Code E23 specifically indicates a drain pump electrical fault or a failure in the drain pump motor circuit.
Our master technician performed on-site diagnostics in Escondido:
- 1Sump Filter & Impeller Check: Removed the stainless steel filter mesh and pump cover to inspect the impeller cavity. Verified zero glass shards, fruit seeds, or debris jamming the impeller blades.
- 2Drain Pump Winding Resistance Test: Accessed the lower sump housing and used a multimeter to measure electrical resistance across the 3-phase BLDC drain pump motor terminals. The pump motor winding registered an open circuit (infinite resistance), confirming an internal electrical coil burn.
- 3Drain Hose & Check Valve Inspection: Inspected the high-loop drain hose and non-return check valve to confirm zero line blockages.
Repair Execution: Factory OEM Bosch Drain Pump Motor Replacement
After reviewing the diagnosis, the customer approved replacing the defective drain pump motor assembly:
- Pump Disassembly: Disconnected power and unmounted the quarter-turn locking BLDC drain pump motor from the sump housing.
- OEM Motor Installation: Installed a brand-new factory OEM Bosch brushless DC drain pump motor assembly.
- Sump Seal Verification: Lubricated the rubber O-ring seal to guarantee a 100% watertight sump connection.
Final Operational Testing & Drain Verification
Following pump installation, our technician initiated a full diagnostic drain test:
- Instant Drainage: The new BLDC pump engaged quietly, purging all standing water in under 45 seconds.
- Error Code Clear: Error E23 was cleared from memory, and the control module completed a full wash and rinse cycle smoothly.
- Leak Inspection: Verified dry base pan sensors under high pump pressure.
Transparent Invoice & Cost Breakdown
We believe in 100% upfront pricing with zero hidden fees:
- Diagnostic Visit & Multi-Point Inspection: $99.95 *(100% FREE & Waived with completed repair)*
- Genuine OEM Bosch Drain Pump Motor Assembly & Installation Labor: $412.00
- Total Investment: $412.00
- Warranty Included: 90-Day Parts & Labor Warranty
Maintenance Tip for Bosch Dishwasher Owners
If your Bosch dishwasher displays E24 or E23, clean the bottom micro-filter monthly and make sure the drain hose under your kitchen sink maintains a high loop. Preventing food debris build-up protects the drain pump impeller and extends motor life.
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$99.95 Technician Diagnostic Visit • 100% Waived With Completed Repair.
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