Outdoor Main Pcb Abnormality - Daikin RXSQ24TAVJU Service Manual

Troubleshooting by Error Code

4.30 Outdoor Main PCB Abnormality

E1
Error Code
Applicable
All outdoor units
Models
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
Causes
Troubleshooting
199
Defective outdoor main PCB (A1P)
Disconnection of the inside/outside relay wires
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
relay wires of outdoor
main PCB are
disconnected.
NO
YES
YES
SiUS331708EA
External factor other than
error (for example, noise
etc.).
Connect the inside/outside
relay wires correctly.
Replace the outdoor main
PCB (A1P).
Service Diagnosis