York YHKMXH009BARX-FX, Service Manual, Page: 261 / 269

Operation
ON
ON
ON
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
Query indoor malfunction history:
In the state of power on or power off, press [CHECK] button, enter the malfunction-querying mode of all indoor units in
the group. Then [CHECK] and [UNIT NO.] will display, and the actual indoor numbers will be displayed in some sequence
(unit number is in decimals). At the same time, in the time region, there will be the current malfunction and the latest time
malfunction, the displaying format is [XX:YY], in which XX stands for the current malfunction, if normal, it will display "--";
YY stands for the latest time malfunction. The failure code of every unit will display for 3 seconds. After the failure codes
of all indoor units in the whole group are displayed, the mode will quit automatically.
How to change the function switches?
ON
OFF
1. Switches or jumper wire must be adjusted when the wire controller is powered off. If the wire controller is
powered on, the above operations will be invalid.
2. Function difference between master wire controller and slave one:
Slave wire controller
All of functions Function
Master wire
controller Contrastive
items
Only with below functions: ON/OFF, MODE, FAN SPEED,
SET TEMP., SWING
No.
SW1-2
SW1-8
SW1-7
SW1-6
SW1-5
SW1-4
SW1-3
SW1-1
State of switch Type
Select the master or
the slave controller
Select the controller
mode
Room temperature
display option
Temperature sensor
position option
26 o lock
Auto restart
Factory Setting
Factory Setting
Set as the slave controller
Set as the master controller
Standard controller
Air handler controller
Visible room temperature
Invisible room temperature
Unavailable 26
o
lock
Available 26
o
lock
Sensor of the controller
Sensor in the unit
Unavailable
Available
Default setting
Default setting
Function description
Note
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