Daikin VRVII - E1 PCB Abnormality

Troubleshooting by Indication on the Remote Controller
92
3.20
E1
PCB Abnormality
Remote Controller Display
E1
Applicable Models
All outdoor unit models
Method of Error Detection
Abnormality is detected under the communication
conditions in the hardware section between the indoor
unit and outdoor unit.
Error Decision Conditions
When the communication conditions in the hardware
section between the indoor unit and the outdoor unit are
not normal
Supposed Causes
 Defective outdoor unit main PCB
 Defective connection of inside/outside relay wires