Troubleshooting By Indication On The Remote Controller; A0" Ahu: Error Of External Protection Device - Daikin ERQ Service Manual

ESIE09-05
3. Troubleshooting by Indication on the Remote
Controller
A0
3.1 " " AHU: Error of External Protection Device
A0
Remote
Controller
Display
Applicable
All AHU models
Models
Method of
Malfunction
Detection
Malfunction
Decision
Conditions
Supposed
Causes
Troubleshooting
Troubleshooting
Actuation of external protection device
Improper field set
Defect of AHU PC board
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
External
protection device is
YES
connected to terminals T1
and T2 of the AHU terminal
block.
NO
ON/OFF
input from
outside (mode No. 12,
first code No. 1) has been
YES
set to external protection
device input (second
code No. 03)
by remote
controller.
NO

Troubleshooting by Indication on the Remote Controller

Actuation of external protection
device.
Change the second code No. to
"01" or "02" .
Indoor unit PC board replacement.
: http://splitoff.ru/tehn-doc.html
(V2776)
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