Outdoor Unit Main Pcb Abnormality - Daikin VRV Aurora RXLQ-TATJU Series Service Manual

Troubleshooting by Error Code

3.32 Outdoor Unit Main PCB Abnormality

Applicable
All outdoor unit models
Models
E1
Error Code
Method of Error
Abnormality is detected under the communication conditions in the hardware section between the
Detection indoor unit and outdoor unit.
Error Decision
When the communication conditions in the hardware section between the indoor unit and the
Conditions outdoor unit are not normal.
Supposed
 Defective outdoor unit main PCB (A1P)
Causes  Defective connection communication line between indoor and outdoor units
Troubleshooting
283
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
Turn OFF the power once and
turn ON again.
Return to normal?
NO
Check if
inside/outdoor
YES
relay wires of outdoor
unit main PCB is
disconnected.
NO
YES
SiUS341802EC
External factor other than
error (for example, noise
etc.).
Connect the communication
line correctly.
Replace the outdoor unit
main PCB (A1P).
Part 6 Service Diagnosis