Field Actions
DISPATCHAlways disconnect appliance from 230V/400V mains before opening panels. Use CAT III multimeter for circuit testing.
Frequently Asked Questions: Favorit I40
FAQ TREEWhat does error code I40 mean on a Favorit appliance?
Favorit error code I40 indicates: Favorit SwissLine / DIVA SilentTech Fully Integrated Precision Dishwasher: Diagnostic fault code i40 registered by the microcomputer controller. Dishwasher analog pressure transmitter voltage output out of calibration threshold (code i40).
What is the root cause of Favorit error code I40?
The primary root cause for Favorit code I40 is: On Favorit SwissLine and European precision appliances built for high durability engineered with Hydro-Flow wash circulation pump with tachometer (80-120 Ω), 2000W flow-through heater (25-28 Ω), electronic analog pressure transmitter, turbidity optic sensor, and AquaStop base pan float switch: air trap chamber choked with detergent residue, pressure tube pinched, or sensor diaphragm degraded. Metrological tolerance verification: sensor output voltage 0.45V to 0.55V DC when tub empty; rises linearly to 2.45V DC at normal wash level..
How do I fix or resolve Favorit error code I40?
To resolve error code I40: Disconnect mains power before servicing. Unplug the harness at the main PCB and use a calibrated digital multimeter: disconnect pressure sensing tube from sump, flush air trap with hot water syringe, and verify DC signal on pin 3. Inspect contacts for pin oxidation or loose terminals. Replace defective part if out of tolerance, re-energize and clear error: Press and hold Start/Reset button for 4 seconds until drain pump initiates, then turn off power for 60 seconds to clear active error code.
Is it safe to clear Favorit error code I40 by resetting power?
Resetting power (unplugging for 5–10 minutes) clears temporary memory errors. However, if Favorit code I40 persists, the physical component causing On Favorit SwissLine and European precision appliances built for high durability engineered with Hydro-Flow wash circulation pump with tachometer (80-120 Ω), 2000W flow-through heater (25-28 Ω), electronic analog pressure transmitter, turbidity optic sensor, and AquaStop base pan float switch: air trap chamber choked with detergent residue, pressure tube pinched, or sensor diaphragm degraded. Metrological tolerance verification: sensor output voltage 0.45V to 0.55V DC when tub empty; rises linearly to 2.45V DC at normal wash level. must be inspected or replaced.
How do I test electrical resistance for Favorit code I40 using a multimeter?
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%..
What safety protocol must be followed before servicing Favorit code I40?
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.
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