Table of Contents
Troubleshooting by Error Code
2.26 Outdoor Unit PCB Abnormality
E1
Error Code
Applicable
All outdoor unit models
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
205
Defective outdoor unit main PCB (A1P)
Defective connection communication line between indoor and outdoor units
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
unit main PCB is
disconnected.
NO
YES
YES
SiUS341802E
External factor other than
error (for example, noise
etc.).
Connect the communication
line correctly.
Replace the outdoor unit
main PCB (A1P).
Service Diagnosis
- Quick Links:
- Outdoor Unit
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