Midea F3 Error Code – Compressor Discharge Sensor Error

Air Conditioner · HIGH Severity

HIGH severity Air Conditioner Model: Midea MSMBB-12CRDN1-MP0W

What This Error Means

Compressor discharge temperature sensor T5 open circuit or short circuit

Diagnostic & Repair Steps

Power Reset
Turn off at breaker, wait 5 min, restart. 🔧 None

RESET ~5 min

Locate T5 Sensor
Find compressor discharge temperature sensor. 🔧 Flashlight

INSPECT ~10 min

Check Connector
Reconnect and inspect. 🔧 Pliers

CHECK ~5 min

Measure Resistance
Replace if open or short. 🔧 Multimeter ⚠️ Disconnect power first

TEST ~15 min

Replace Sensor
Replace faulty NTC thermistor. 🔧 Connector

REPLACE ~20 min

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