Midea V8 VRF Series - Page 78

V8 VRF Indoor Units
77
Troubleshooting Guide
6.1.30 dE1 - Sensor control board fault
Error display
Digital display
Display position
Panel, display box, and wired controller
Error impact
The faulty IDU and other IDUs of the same system: operate normally.
ODU of the same system: operate normally.
Error trigger
If the main control board of an IDU has lost communication with sensor control board for 2 min
Error recovery
Automatic recovery
Possible cause
See the Troubleshooting section.
Troubleshooting
dE1
Cause 3: The IDU main control
board is damaged
Cause 4: The sensor control board is
damaged
Replace the main
control board of the
IDU
Replace the sensor
control board
Cause 1: The communication cable
between the main control board of
the IDU and the sensor control
board has become disconnected or
short circuited
Replace the
communication
cable and properly
connect the cable
Cause 2: The communication cable
between the main control board of
IDU and the adapter board has
become loose
Connect the cable
properly