Always disconnect appliance from 230V/400V mains before opening panels. Use CAT III multimeter for circuit testing.
Miele error code F4045 indicates: Temperature control no longer works and an NTC error code is displayed..
The primary root cause for Miele code F4045 is: The NTC 1 temperature probe circuit is open (cut wire, faulty probe), so no temperature information is transmitted..
To resolve error code F4045: Turn off the power. Check the connection of the NTC probe 1. Test its resistance with a multimeter; infinite resistance indicates an open circuit and the need to replace the probe.
Resetting power (unplugging for 5–10 minutes) clears temporary memory errors. However, if Miele code F4045 persists, the physical component causing The NTC 1 temperature probe circuit is open (cut wire, faulty probe), so no temperature information is transmitted. must be inspected or replaced.
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..
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.
Miele error code F4045 on a Dishwasher indicates: Temperature control no longer works and an NTC error code is displayed.. Primary cause: The NTC 1 temperature probe circuit is open (cut wire, faulty probe), so no temperature information is transmitted.. Recommended solution: Turn off the power. Check the connection of the NTC probe 1. Test its resistance with a multimeter; infinite resistance indicates an open circuit and the need to replace the probe..
Miele error code F4045 on a Tumble Dryer indicates: Temperature control no longer works and an NTC error code is displayed.. Primary cause: The NTC 1 temperature probe circuit is open (cut wire, faulty probe), so no temperature information is transmitted.. Recommended solution: Turn off the power. Check the connection of the NTC probe 1. Test its resistance with a multimeter; infinite resistance indicates an open circuit and the need to replace the probe..
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