Bosch Dishwasher E23 Error Repair in Port St. Lucie, FL

Quick symptom overview

Bosch 100, 300, 500, 800, and Benchmark series dishwashers display E23 on front or top-edge digital displays when the main power control module (12008380, 11032232, 00705020) detects an open winding, shorted motor coil, or wiring harness fault on BLDC Drain Pump Motor 00611332 (supersessions 10013911, 00620774, 611332).

The drain evacuation circuit consists of: Power Control Module (in lower rear panel) → bottom cabinet wiring harness → 3-pin / 2-pin locking harness connector → 120V drain pump motor 00611332 mounted to the sump base → rubber check valve flap → garbage disposal / sink drain branch. During cycle drain phases, the main module applies 120 VAC (or 3-phase BLDC drive pulses) to rotate the magnetic pump rotor at 3,000 RPM. If an internal motor winding opens (> 200 Ω), insulation breaks down, or moisture shorts the plug terminals, the control module halts operation, turns on the tap light, and displays E23.

E23 code immediately at cycle start: Drain pump coil open (∞ Ω) or harness plug unclipped under sump base. E23 code at cycle end with standing water: Motor coil shorted under thermal load or damaged triac on power control module (12008380). Related Bosch dishwasher & appliance diagnostic guides: Bosch dishwasher E15 flood sensor guide, Bosch dishwasher E24 / E25 drain pump guide, and Bosch washer E18 drain timeout guide. Local service page: Bosch appliance repair.

Safety: Turn off home circuit breaker and disconnect 120V power supply line before removing lower metal toe kick cover or disconnecting drain pump motor wiring.

Step-by-step diagnostic hierarchy

1. Verify pump impeller and check valve (Power OFF — simple check) — Open dishwasher door and remove lower spray arm, cylindrical mesh filter, and stainless micro-filter plate:

   • Sponge out standing water inside sump well.
   • Remove white plastic drain pump cover latch (or Torx T20 screw depending on model).
   • Inspect internal impeller vanes for glass shards, fruit seeds, or bone fragments: spin impeller with fingers to confirm smooth 360-degree rotation.
   • Inspect black rubber check valve flap behind pump cavity: replace flap if distorted, stiff, or torn.

2. Measure drain pump motor coil resistance (Power OFF — meter check) — Unplug dishwasher power cord or turn off breaker, unbolt 2 lower toe kick screws, and pull off sound dampening insulation blanket:

   • Locate drain pump motor 00611332 attached to right front side of plastic sump bowl.
   • Press locking tab on harness plug and pull connector off motor terminals.
   • Set multimeter to 200 Ω scale:
     • Measure across terminals of Drain Pump 00611332:
     • Expected normal coil resistance: 75 Ω to 95 Ω (85 Ω nominal at 70°F).
     • Measure each terminal to metal pump bracket / chassis frame:
     • Expected chassis ground isolation: ∞ Ω (No short to ground).
   • Result: ∞ Ω (Open coil): Winding severed → replace Drain Pump Assembly 00611332 / 10013911. < 40 Ω (Shorted): Replace pump assembly immediately to protect power module logic.

3. Measure harness wire continuity to Main Power Module (Power OFF — harness check) — Trace 2-wire harness loom from drain pump back to lower rear power module 12008380:

   • Unclip connector from power module header X6 / DRAIN:
     • Set meter to 200 Ω scale:
     • Measure pin-to-pin between drain pump harness plug and module connector:
     • Expected line continuity: < 0.5 Ω per wire.
   • Result: > 1.0 Ω or ∞ Ω: Wire pinched under base pan sheet metal or corroded by sump water leak → repair wire leads or replace bottom harness loom.

4. Verify Power Control Module 12008380 (Power ON — live check) — If drain pump coil measures 85 Ω and harness continuity is < 0.5 Ω:

   • Reclip harness connectors to pump and power module.
   • Restore 15A power and initiate a 2-minute Cancel / Drain cycle.
   • Result: E23 code recurs with good 85 Ω pump: Drain triac or BLDC inverter driver on power module burned → replace Power Control Module Assembly 12008380 / 11032232.

Multimeter and safety checks

Disconnect 120V power supply before removing lower metal access panel or taking resistance measurements on motor terminals.

Component / Test	Setup & Meter Range	Expected Normal Value	Fault / Failure Mode
Drain Pump 00611332	Across motor spade terminals, 200 Ω	75 Ω–95 Ω (85 Ω)	∞ Ω (open winding; logs E23) or < 40 Ω (shorted)
Pump to Chassis Ground	Terminal pin to metal frame, 2k Ω	∞ Ω (Open)	< 10 Ω (moisture short to ground; trips GFCI / logs E23)
Harness Line Continuity	Pin-to-pin pump to PCB header X6, 200 Ω	< 0.5 Ω per wire	∞ Ω (broken wire lead inside lower cabinet tray)
Power Module Output	Header X6 terminals during drain, 200 VAC	110 VAC–125 VAC	0 VAC (blown drain pump driver triac on PCB)

Root cause vs repair breakdown

Observable Symptom	Root Cause / Faulty Part	Corrective Repair Action
E23 code, pump coil reads ∞ Ω	Open winding on BLDC drain pump motor	Replace Drain Pump Assembly 00611332 / 10013911
E23 code, harness plug wet/corroded	Sump O-ring water leak dripping on plug	Repair sump leak; replace Drain Pump 00611332 & harness plug
E23 code, wire broken in base pan	Wire lead pinched against steel frame	Splice damaged wire lead; insulate with heat-shrink tubing
E23 code, pump reads 85 Ω, no voltage	Burned drain triac on main power module	Replace Main Power Control Module 12008380 / 11032232

FAQ

What does error code E23 mean on a Bosch dishwasher?

E23 indicates a Drain Pump Electrical Circuit Fault. The electronic main power module / control board (12008380 / 11032232) detects an open circuit, shorted coil winding, or wiring harness disconnect on BLDC drain pump motor 00611332 (or 10013911).

How do I test Bosch dishwasher drain pump motor 00611332 with a multimeter?

Unplug dishwasher or switch off 15A breaker. Remove lower front toe kick access panel and sound insulation shield. Unclip 3-pin / 2-pin harness connector from drain pump 00611332 mounted on sump housing. Set multimeter to 200 Ω scale: measure coil resistance across motor terminals; expected resistance is 75 Ω to 95 Ω (85 Ω nominal at 70°F).

How is error code E23 different from E24 or E25 on Bosch dishwashers?

E23 is a electrical circuit failure (open coil, blown harness, or failed triac on control board). E24 indicates a mechanical drain hose restriction or air gap blockage, while E25 indicates a physical rotor lock caused by glass, seeds, or string wrapped around the pump impeller under the white cover.

Should I replace drain pump 00611332 or main power module 12008380?

If drain pump motor coil resistance is open (∞ Ω), shorted (< 40 Ω), or shorted to chassis ground, replace Drain Pump Assembly 00611332 / 10013911. If pump coil measures 85 Ω and harness continuity reads < 0.5 Ω to main module header X6, replace Power Control Module 12008380.

When to schedule professional service

If main power control module replacement, under-counter removal, or base pan leak repair is required, certified Bosch dishwasher technicians are ready to help. Schedule Bosch dishwasher repair → or contact our technical service department.