Zerowatt AL05

Zerowatt error code AL05 indicates: Zerowatt ZD / Space / CompactLine Dishwasher: Water filling timeout alarm AL05; wash tank does not fill to operating level within program timeout limit..

The primary root cause for Zerowatt code AL05 is: On Zerowatt dishwashers utilizing CompactLine hydraulic wash circuit, mechanical water pressure regulation, and micro-switch anti-flood float protection: Scaled water supply tap, blocked metal strainer mesh in inlet hose connector, or defective inlet valve (~3.5–4.5 kΩ)..

To resolve error code AL05: Check faucet flow rate with bucket test. Remove supply hose and rinse out particulate debris from inlet filter. Measure valve solenoid (~3.5–4.5 kΩ). Hold Start button for 5 seconds until the program run LED stops blinking, close the door to complete drain, then power off.

Resetting power (unplugging for 5–10 minutes) clears temporary memory errors. However, if Zerowatt code AL05 persists, the physical component causing On Zerowatt dishwashers utilizing CompactLine hydraulic wash circuit, mechanical water pressure regulation, and micro-switch anti-flood float protection: Scaled water supply tap, blocked metal strainer mesh in inlet hose connector, or defective inlet valve (~3.5–4.5 kΩ). 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.