Outdoor Unit Main Pcb Abnormality - Daikin VRV S RXQ4/5ARV1 Service Manual

Troubleshooting by Error Code

5.22 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
Detection the 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
Causes  Disconnection of the inside/outside relay wires
Troubleshooting
230
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 / outside
YES
relay wires of outdoor
unit main PCB is
disconnected.
NO
YES
SiAF332111E
External factor other than
error (for example, noise
etc.).
Connect the inside/outside
relay wires correctly.
Replace the outdoor unit
main PCB (A1P).
Part 6 Service Diagnosis