Bosch error codes and warnings
Match the exact device and display before troubleshooting. These independent guides begin with published manufacturer information and keep the safe owner checks separate from service work.
Kitchen Appliances
Bosch Dishwasher E15 Error: Water in Base Meaning
The leakage-protection switch detected water in the base. Turn off the water supply and contact Bosch support.
Read the guideBosch Dishwasher E16 Error: Water Flow Meaning
The dishwasher detected a filling-system or incoming-water problem. Check the supply and accessible inlet hose.
Read the guideBosch Dishwasher E18 Error: Low Water Level Meaning
The water level is too low or water is not entering correctly. Confirm the valve is open and the inlet hose is not kinked.
Read the guideBosch Dishwasher E19 Error: Dispenser Solenoid Meaning
The dishwasher detected a detergent-dispenser solenoid circuit fault. One 30-second breaker reset is the safe owner step.
Read the guideBosch Dishwasher E20 Error: Heat Pump Heater Meaning
The heat pump's internal heater reported a fault. Reset power once and arrange service if the code returns.
Read the guideBosch Dishwasher E21 Error: Blocked Heat Pump Meaning
The dishwasher reports a blocked heat pump. Internal pump work is not an owner-level repair.
Read the guideBosch Dishwasher E22 Error: Blocked Filter Meaning
The filter is blocked. Remove, wash, and correctly reinstall the model-approved filter before one rinse test.
Read the guideBosch Dishwasher E23 Error: Drain Pump Meaning
The drain pump is blocked, clogged, or faulty. Check only user-approved access areas and contact Bosch if it persists.
Read the guideBosch Dishwasher E24 Error: Not Draining Meaning
The dishwasher is not draining correctly. Check the filter, pump cover, hose, air gap, and disposer connection.
Read the guideBosch Dishwasher E25 Error: Pump Cover Meaning
The drain pump is blocked or its cover is loose or missing. Inspect only the model-approved filter and pump-cover area.
Read the guideA nearby code is not necessarily the same code.
Confirm the model number and complete display in the official manual. If the code is missing, send us the brand, model, and exact warning.