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Bosch Dishwashers error codes
Verified error codes, explanations, and safe checks for Bosch Dishwashers.
20 verified guides · 2 device groups
Before you start
- Note the full display code and model number, not only the brand.
- Compare the summary below with what your appliance is doing. A different code or symptom needs a different guide.
- Open the guide sources and check their device and model scope. Follow only checks intended for the owner.
This directory lists verified fault codes for Bosch Dishwashers. Each card opens a full guide with likely causes, owner-safe checks, and a clear stop point for professional service.
Match the code on the display, or browse by verification quality. Use the links below to return to all Bosch devices or every brand under Dishwashers.
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E09
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E12
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E14
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E15
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E16
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E17
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E18
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E19
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E22
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E27
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E24
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E25
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E01
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E02
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E03
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E04
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E05
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E06
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E10
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E23
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Troubleshooting Bosch Dishwasher Error Code E09 (Heating Circuit Failure)
The Bosch dishwasher error code E09 signals a problem with the heating circuit, meaning the dishwasher cannot heat water during its cycle. This may cause dishes...
Bosch Dishwasher Error Code E12: Limescale Build-up
Error code E12 on a Bosch dishwasher indicates a build-up of limescale in the heating system, which can reduce performance and may damage the appliance. This pa...
Bosch Dishwasher Error Code E14: Water Inflow/Flow Meter Issue
Error code E14 on Bosch dishwashers indicates a problem with the water inflow system, commonly related to a flow meter failure or disrupted water entry into the...
Troubleshooting Bosch Dishwasher Error Code E15
The Bosch dishwasher error code E15 indicates that the dishwasher's safety switch has detected water in the base, triggering the leakage protection system to pr...
Troubleshooting Bosch Dishwasher Error Code E16
Error code E16 on Bosch dishwashers indicates an issue with water inflow or filling, meaning the dishwasher is not receiving water correctly. This can be caused...
Troubleshooting Bosch Dishwasher Error Code E17
The Bosch dishwasher error code E17 indicates an issue with the water inflow or filling system, meaning the dishwasher is not receiving water as expected.
Bosch Dishwasher E18: Insufficient Water Flow
On a Bosch dishwasher, error E18 indicates insufficient or incorrect water flow into the appliance. The incoming water level may be too low, or water may not be...
Bosch dishwasher error E19: dispenser or internal-valve circuit fault
On Bosch dishwashers in the United States, E19 indicates a fault in the detergent-dispenser solenoid circuit. Bosch guidance for some other markets describes E1...
Bosch Dishwasher Error E22: Clean the Filter and Check for Drainage Blockages
Bosch error E22 primarily indicates a blocked or dirty dishwasher filter. Bosch also lists possible drainage obstructions, including a blocked drain pump or loo...
Bosch Dishwasher Error Code E27: Low Supply Voltage
Bosch dishwasher error code E27 indicates that incoming electrical voltage to the unit is too low or unstable. The appliance halts operation to protect sensitiv...
Bosch Dishwasher E24: Drainage Troubleshooting
E24 indicates a drainage problem, but the cause can vary by dishwasher model. Check the manual for your exact model before inspecting or cleaning components; do...
Bosch dishwasher E25: drain pump blocked or cover not seated
Bosch says E25 on its U.S. dishwashers indicates that the drain pump is blocked, or its cover is loose or missing. The exact access and cleaning procedure can v...
Bosch Dishwasher Error Code E01: Heat Pump Motor Circuit Fault
Error code E01 indicates a heat pump motor circuit fault at the main control board. The control module has detected an electrical malfunction affecting the heat...
Bosch Dishwasher E02 Error: Main Control Board Relay Fault
Bosch’s U.S. support information identifies E02 as a main control board relay fault. The code alone does not confirm which component needs replacement. Because...
Bosch Dishwasher E03 Error: Control Board Relay Fault
Bosch lists E03 as a main control board relay fault. The model number was not provided, so the meaning is based on Bosch’s U.S. dishwasher code listing and may...
Bosch dishwasher E04 error: heater electronics fault detected
Bosch U.S. describes E04 as a fault in the heater electronics detected during the dishwasher’s self-test. Because the model number is unknown, confirm the meani...
Bosch dishwasher E05 error
On Bosch dishwasher models that use this code, E05 indicates a fault in the wash-arm diverter circuit associated with the main control board. The code alone doe...
Bosch Dishwasher E06 Door Sensor Circuit Error
Bosch error code E06 indicates a door sensor circuit fault. The dishwasher's electronic control board cannot verify that the door is securely closed and latched...
Bosch dishwasher E10 error: Zeolite drying-chamber heater fault
Bosch identifies E10 on applicable dishwashers as a fault with the Zeolite (Crystal Dry) drying-chamber heater. The model and market are unknown, so check the a...
Bosch Dishwasher Error Code E23: Drain Pump Fault
Bosch error code E23 indicates a fault with the waste water drain pump. It occurs when the pump is mechanically blocked by debris, electrically damaged, or unab...
Frequently asked questions
Where do I find the Bosch error code on my appliance?
Most Bosch dishwashers and washers show the code on the digital display (for example E15 or E09). Some older panels blink LEDs in a pattern—check the model sticker and manual if nothing is shown as letters.
Are Bosch error codes the same worldwide?
Many codes overlap, but regional firmware and model families can differ. Always match brand + device type + the exact code string, and prefer the guide that names your product category.
When should I stop DIY checks on a Bosch appliance?
Stop immediately for water under the unit, burning smells, exposed live parts, or any step marked for a technician. Unplug the appliance before opening panels or touching pumps and heaters.
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