Rosieres Er04

Rosieres error code ER04 indicates: Rosières Sublime / Origine / Paul Bocuse Pyrolytic Oven: Tangential cooling fan failure Er04; electronics cooling blower tachometer signal absent or speed falls below minimum RPM..

The primary root cause for Rosieres code ER04 is: On Rosières ovens utilizing French culinary precision thermal regulation, Paul Bocuse pyrolytic cavity, and GIAS Cuore microcomputer controller: Jammed cross-flow fan impeller, open fan motor winding (~180–350 Ω), or defective Hall effect tachometer sensor..

To resolve error code ER04: Inspect tangential fan above cavity for free spin. Measure fan motor coil resistance (~180–350 Ω across terminals). Check Hall sensor 5V DC supply. Return oven selectors to 0, switch off the kitchen circuit breaker for 60 seconds, re-engage and reset the rotary clock timer.

Resetting power (unplugging for 5–10 minutes) clears temporary memory errors. However, if Rosieres code ER04 persists, the physical component causing On Rosières ovens utilizing French culinary precision thermal regulation, Paul Bocuse pyrolytic cavity, and GIAS Cuore microcomputer controller: Jammed cross-flow fan impeller, open fan motor winding (~180–350 Ω), or defective Hall effect tachometer sensor. must be inspected or replaced.

Set a digital multimeter to ohms (Ω). Disconnect power and test 3-Phase Motor Windings / Tacho Generator / Carbon Brushes across Across phase pins U-V, V-W, U-W on motor harness; across tacho pins. Expected nominal reading is 3Ω–6Ω (BLDC phase U-V-W) / 60Ω–180Ω (Tacho coil) / 1.5Ω–3.5Ω (Universal stator). Tolerance: BLDC phase winding values must be strictly balanced within ±0.3Ω. Hand rotation generates 1V–4V AC on tacho..

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.