25 | Troubleshooting
Installer and user reference guide
160
RXYSA8~12AMY1B
VRV 5-S system air conditioner
4P752782-1A – 2024.02
After correcting the abnormality, press BS3 to reset the malfunction code and retry
operation.
The malfunction code which is displayed on the outdoor unit will indicate a main
malfunction code and a sub code. The sub code indicates more detailed
information about the malfunction code. The malfunction code will be displayed
intermittent.
Example:
Code Example
Main code
Sub code
With an interval of 1second, the display will switch between main code and sub
code.
INFORMATION
See the service manual for:
▪ The complete list of error codes
▪ A more detailed troubleshooting guideline for each error
25.3.1 Error codes: Overview
Main
code
Sub
code
Cause Solution SVEO
(a)
SVS
(b)
The R32 sensor in one of the indoor
units has detected a refrigerant leak
(c)
Possible R32 leak. The SV unit will
close the shut-off valves of the branch
pipe port to which the corresponding
indoor unit is connected. Indoor units
on this branch pipe port will be out of
operation until the leak is repaired. In
case the indoor unit is directly
connected to the outdoor unit, the
compressor will shut down and the
unit will stop operating. Also all shut-
off valves for all ports in all SV units in
the system will be closed. Refer to
service manual for more information.
The R32 sensor in one of the SV unit
has detected a refrigerant leak
Possible R32 leak. The SV unit will
close all of its shut-off valves and
triggers the ventilation system of the
SV unit. The system goes in locked
status. Service is needed to repair the
leak and activate the system. Refer to
the service manual for more
information.
/ Safety system error (leak detection)
(c)
An error related to the safety system
occurred.
Refer to the service manual for more
information.