LG ACHH Series Manual page 60

Error code check
Error number Errors
Load water flow switch
13
n Failure diagnosis method
Has the flow switch
error happened before
occurrence? [Note 1]
No
Is enough flow formed?
[Note 2]
Yes
After making a
terminal UI5,G
of a chiller board short,
[Note 3]is a green signal
occurred on a flow switch input
of HMI system status
screen?
[Note 4]
Yes
Flow switch replacement
[Note 1] Since previously occurred error is not removed
in case of not pressing the reset button of HMI, the
error should be removed by pressing the reset button
for sure in case of occurring a flow switch error.
[Note 2] Please include the flow formation part in the
product.
When the flow switch is off for 3 seconds when
starting or during operation and this condition
error occurs 3 times within one hour, or flow switch
is off for more than 9 seconds.
After treating the
Yes
error, is it finally removed
by pressing a reset button
of HMI?
Yes
Facility confirmation
No
request regarding flow
No
Chiller board replacement
Meaning
Remove the previously
No
occurred error by pressing
a reset button of HMI
[Note 3] Unscrew the terminal holder of a board and
make the both ends short like a figure below.
[Note 4] Confirm whether or not a flow switch "ON" sig-
nal are occurred normally.
- 60 -
Main cause of occurrence
- Contact defect of a contact point
- Flow switch defect
- Connection defect
- In case where a reset button is not
pressed after occurring a flow switch
error previously
UI5,G Flow S/W