E4
Midea E4 Error Code – Indoor Room Temp Sensor Error
Air Conditioner · HIGH Severity
What This Error Means
Indoor room temperature sensor T1 open circuit or short circuit
Diagnostic & Repair Steps
1
Power Reset
Turn off at breaker, wait 5 min, restart.
Turn off at breaker, wait 5 min, restart.
RESET
~5 min
2
Locate T1 Sensor
Find indoor room temp sensor near air inlet.
Find indoor room temp sensor near air inlet.
INSPECT
~10 min
3
Check Connector
Reconnect and inspect.
Reconnect and inspect.
CHECK
~5 min
4
Measure Resistance
~10k? at 25C expected. ⚠️ Disconnect power first
~10k? at 25C expected. ⚠️ Disconnect power first
TEST
~15 min
5
Replace Sensor
Replace faulty NTC thermistor.
Replace faulty NTC thermistor.
REPLACE
~20 min
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