Troubleshooting PACD011001C2
498 Troubleshooting UM Combination “MA1R Series” Using R-407C
3. Troubleshooting
3.1 Indoor Unit: Error of External Protection Device
Remote Controller
Display
A0
Supposed Causes
„
Actuation of external protection device
„
Improper field set
„
Defect of indoor unit PC board
Troubleshooting
(VF029)
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
controller.
YES
NO
NO
YES
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.