Bosch E15

Bosch error code E15 indicates: Bosch Serie 4 / Serie 6 / Serie 8 ActiveWater & PerfectDry Zeolith: AquaStop safety flood protection triggered E15; polystyrene float switch in base tray activated, drain pump runs continuously..

The primary root cause for Bosch code E15 is: On Bosch dishwashers: Water leak into bottom drip tray from sump gasket, loose circulation pump hose, cracked water inlet matrix, or leaking door seal..

To resolve error code E15: Disconnect power. Sponge water from bottom pan to drop float switch. Locate source of leak (often sump gasket; install Bosch sump repair kit 12005744). Hold Start/Reset key for 3 seconds until '0:01' appears, close door, allow 60s for drain completion, then power off.

Resetting power (unplugging for 5–10 minutes) clears temporary memory errors. However, if Bosch code E15 persists, the physical component causing On Bosch dishwashers: Water leak into bottom drip tray from sump gasket, loose circulation pump hose, cracked water inlet matrix, or leaking door seal. must be inspected or replaced.

Set a digital multimeter to ohms (Ω). Disconnect power and test Mechanical Pressure Switch Contacts / Inductive Frequency Sensor across Across switch spade contacts with harness unplugged; electronic output: 40Hz–50Hz frequency signal. Expected nominal reading is Mechanical: Continuity 0.0Ω–0.2Ω (Empty: 11-12, Full: 11-14). Electronic: 20Ω–45Ω coil resistance.. Tolerance: Mechanical switch contacts must transition cleanly on gentle breath pressure. Coil ~22Ω ±5%..

Standard electrical safety protocol: 1. Disconnect 230V mains power before opening panels. 2. Verify zero voltage at test points. 3. Allow hot water or heating elements to cool below 30°C before handling.