Westinghouse i58

Westinghouse error code I58 indicates: Westinghouse WDF Series / Fast 30 Wash Dishwasher: Circulation pump motor phase disconnected or stator open circuit i58; inverter senses missing phase current..

The primary root cause for Westinghouse code I58 is: On Westinghouse (Westinghouse WDF Series / Fast 30 Wash Dishwasher) models: Cut wire in three-phase motor cable harness, terminal pin backed out of plastic housing, or open stator winding inside motor..

To resolve error code I58: Test electrical continuity of each phase lead from inverter board to motor terminals (< 0.5 Ω). Replace motor if winding is open (infinite Ω). Press Start/Pause together with Temp button for 5 seconds to exit service diagnostic mode and clear persistent EEPROM alarm.

Resetting power (unplugging for 5–10 minutes) clears temporary memory errors. However, if Westinghouse code I58 persists, the physical component causing On Westinghouse (Westinghouse WDF Series / Fast 30 Wash Dishwasher) models: Cut wire in three-phase motor cable harness, terminal pin backed out of plastic housing, or open stator winding inside motor. 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.