ERR-T1

Midea ERR-T1 Error Code – Indoor Room Temp Sensor Error

Air Conditioner · HIGH Severity

HIGH severity Air Conditioner Model: Midea Cassette/Ceiling Floor AC
What This Error Means
Indoor room temp sensor open or short-circuit
Diagnostic & Repair Steps
1
Power Reset
Turn off at breaker, wait 5 minutes, restart. 🔧 None
RESET ~5 min
2
Locate Indoor Room Temp Sensor
Find thermistor probe in indoor unit near air inlet. 🔧 Flashlight
INSPECT ~10 min
3
Check Sensor Connector
Reconnect and inspect for damage. 🔧 Pliers
CHECK ~5 min
4
Measure Sensor Resistance
At 25C ~10k? expected. 🔧 Multimeter ⚠️ Disconnect power first
TEST ~15 min
5
Replace Sensor
Replace faulty NTC thermistor. 🔧 Connector
REPLACE ~20 min

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