E5
Midea E5 Error Code – Outdoor Temp Sensor Error
Air Conditioner · HIGH Severity
What This Error Means
Open or short circuit of outdoor temperature sensor
Diagnostic & Repair Steps
1
Power Reset
Turn off AC at breaker, wait 5 minutes, restart.
Turn off AC at breaker, wait 5 minutes, restart.
RESET
~5 min
2
Locate Outdoor Temp Sensor
Find outdoor ambient temperature sensor near outdoor unit air inlet.
Find outdoor ambient temperature sensor near outdoor unit air inlet.
INSPECT
~10 min
3
Check Sensor Connector
Disconnect and reconnect sensor connector on outdoor PCB. Check for corrosion or damage.
Disconnect and reconnect sensor connector on outdoor PCB. Check for corrosion or damage.
CHECK
~5 min
4
Measure Sensor Resistance
Measure resistance across sensor terminals with multimeter. At 25C should read ~10k?. ⚠️ Disconnect power before measuring
Measure resistance across sensor terminals with multimeter. At 25C should read ~10k?. ⚠️ Disconnect power before measuring
TEST
~15 min
5
Replace Sensor
If resistance out of range, replace NTC thermistor sensor.
If resistance out of range, replace NTC thermistor sensor.
REPLACE
~20 min
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