Field Actions
DISPATCHAlways disconnect appliance from 230V/400V mains before opening panels. Use CAT III multimeter for circuit testing.
Frequently Asked Questions: Rosieres E05
FAQ TREEWhat does error code E05 mean on a Rosieres appliance?
Rosieres error code E05 indicates: NTC Temperature Sensor Fault.
What is the root cause of Rosieres error code E05?
The primary root cause for Rosieres code E05 is: The water temperature sensor (NTC) is providing an incorrect reading, is open circuit, or short-circuited. This could be the sensor itself or the wiring to it..
How do I fix or resolve Rosieres error code E05?
To resolve error code E05: Test the NTC sensor with a multimeter for the correct resistance (typically around 20k Ohms at room temperature). Check the wiring. Replace the sensor if faulty.
Is it safe to clear Rosieres error code E05 by resetting power?
Resetting power (unplugging for 5–10 minutes) clears temporary memory errors. However, if Rosieres code E05 persists, the physical component causing The water temperature sensor (NTC) is providing an incorrect reading, is open circuit, or short-circuited. This could be the sensor itself or the wiring to it. must be inspected or replaced.
How do I test electrical resistance for Rosieres code E05 using a multimeter?
Set a digital multimeter to ohms (Ω). Disconnect power and test NTC Temperature Sensor Probe (Thermistor) across Across sensor pins 1-2 (unplugged harness). Expected nominal reading is 4.8kΩ–12kΩ (at 20°C–25°C). Tolerance: Negative temperature coefficient: resistance drops smoothly when warmed with fingers. OL = open circuit..
What safety protocol must be followed before servicing Rosieres code E05?
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.
Community Verification
COMMUNITYDid this solution resolve the issue?