Midea M3OC-27HRDN1-M - Outdoor Unit Troubleshooting Guide

9.3.2 Outdoor unit trouble shooting
Outdoor unit display LED STATUS
E0 EEPROM parameter error
Outdoor unit display LED STATUS
E1
No 1 Indoor units pipe temp. sensor or connector of pipe temp. sensor is
defective
Outdoor unit display LED STATUS
E2
No 2 Indoor units pipe temp. sensor or connector of pipe temp. sensor is
defective
Shut off the power supply and turn on it 1 minute later
The problem comes out again
Is the EEPROM chip plugged in indoor PCB
No
Correct the connection
Replace the main PCB of indoor unit
Is connection to connector of pipe temp. sensor good?
Check the resistance of the temp. sensor according to Annex 1
Repair connector
No
Yes
Replace the sensor