Troubleshooting by Indication on the remote control SiENBE34-703
122 Troubleshooting
3. Troubleshooting by Indication on the remote
control
3.1 “A0” Indoor Unit: Error of External Protection Device
remote control
Display
A0
Applicable
Models
All indoor unit models
Method of
Malfunction
Detection
Malfunction
Decision
Conditions
Supposed
Causes
! Actuation of external protection device
! Improper field set
! Defect of indoor unit PC board
Troubleshooting
(V2776)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Indoor unit PC board replacement.
Actuation of external protection
device.
Change the second code No. to
"01" or "02" .
External protection
device is connected to
terminals T1 and T2 of
the indoor unit terminal
block.
ON/OFF input from
outside (mode No. 12,
first code No. 1) has
been set to external
protection device input
(second code No. 03)
by remote control.
YES
YES
NO
NO
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