York HIDS006B21S Service Manual page 72

TROUBLESHOOTING
(4) Press "On/Off" button.
Normal
The test run operation is started. The operation mode, the airflow volume, the airflow direction
and the test run time can be set on the Test Run screen.
Select the item by pressing "
The test run is completed by pressing the "Back/Help" button during the stoppage or "On/Off" button
during the operation.
Abnormal
If the units do not start or the operation light on the wired controller flashes,
there is an abnormality.
(5) Checking Procedure for Abnormalities
Wired Controller
Indication
The operation light
flashes. (1 time/1 sec.)
And the Unit No. and
Alarm Code "03" flash.
The operation light
flashes. (1 time/2 sec.)
Other alarm codes or
indications than those
above (Refer to
the Alarm Code Table.)
The operation light
flashes. (1 time/1 sec.)
And the Unit No. 00.
Alarm Code dd and
Unit Code E.00 flash.
3-50
".
Unit Condition
The unit does not
The power supply is not turned ON.
start.
The connecting wires of operating
line are incorrect or loose.
The unit does not The connection of controller cable
start. is incorrect.
The unit does not The connection of the thermistors
start, or starts once or other connectors are incorrect.
and then stops. Tripping of protector exists.
The unit does not The connecting wires of operating
start. line are incorrect or loose.
Back to (1) after checking
Fault
1. Connecting Order of each Terminal Block.
The fuse on the PCB may be blown
due to miswiring. (Can be recovered only
once by the DSW on the PCB)
Procedures for Recovery When Transmitting
Circuit Fuse is Blown
1. Correct the wiring for the terminal block.
2. Setting positions of the model code are
shown below.
Indoor Unit PCB
ON
OFF
2. Screw Fastening of each Terminal Block.
3. Connecting Order of Power Line Between
Indoor Units and Outdoor Unit.
This is the same as above items 1 through 3.
An authorized service person should check
the unit using the Alarm Code Table in this
manual.
An authorized service person should check
the unit using the Alarm Code Table in this
manual.
Inspection Points when the
Power Supply is OFF
Outdoor Unit PCB
DSW7 DSW10
ON
OFF
1 2 1 2
SM-18001-rev.1