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Bosch Dishwasher Error Codes

6 error codes with causes and step-by-step fixes

Code	Meaning	Severity	DIY	Est. Cost
E15	Leak protection activated — water detected in base tray	⚠ High Severity	moderate	$0–$100
E24	Drain blocked — dishwasher not draining	⚠ High Severity	moderate	$0–$60
E25	Drain pump or filter blocked — drain impeller obstructed	⚠ High Severity	moderate	$0–$130
E01	Heating element or NTC sensor failure — water not heating	⚠ High Severity	moderate	$15–$90
E09	Heating circuit failure — heater not functioning	⚠ High Severity	hard	$0–$350
E05	Water shortage — insufficient water entering dishwasher	⚠ Medium Severity	easy	$0–$80

⚠️ Serious Errors — Act Quickly

Leak protection activated — water detected in base tray

The AquaStop anti-flood system has detected water in the base tray of the Bosch …

Drain blocked — dishwasher not draining

The Bosch dishwasher cannot drain water. This is a very common error often cause…

Drain pump or filter blocked — drain impeller obstructed

The drain pump filter or pump impeller is physically blocked by debris. This is …

Heating element or NTC sensor failure — water not heating

The dishwasher cannot heat water to the target temperature. The heating element …

Heating circuit failure — heater not functioning

The heating circuit has an electrical fault. Similar to E01 but specifically ind…