Unit Maintenance And Service Label; Troubleshooting; Solving Problems Based On Error Codes; Error Codes: Overview - Daikin VRV 5-S RXYSA8AMY1B Installation And Operation Manual

21.4 SV unit maintenance and service
label
WARNING
Never power off the unit for maintenance and service
before the shut-off valves are closed.
a
2
c
3
e
a Caution for maintenance and servicing of SV unit
b Consult the installation manual or service manual
c Apply the field setting on the outdoor unit
d Wait for two minutes to allow the system to close the
valves
e Turn off the system power
f Perform maintenance and servicing on the SV unit
22

Troubleshooting

CAUTION
See "2 Specific installer safety
sure troubleshooting complies with all safety regulations.
22.1.1

Error codes: Overview

Main code Sub code
The R32 sensor in one of the indoor units has
detected a refrigerant leak
The R32 sensor in one of the SV unit has
detected a refrigerant leak
/ Safety system error (leak detection)
RXYSA8~12AMY1B
VRV 5-S system air conditioner
4P752781-1B – 2024.02
1
b
2'
d
4
f
3P736525-1
instructions" [ 4 5] to make
Cause
(c)
(c)
22.1 Solving problems based on error
codes
In case of a displayed malfunction code, perform correcting actions
as explained in the malfunction code table.
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
Main code
Sub code
With an interval of 1 second, 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
Solution
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.
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.
An error related to the safety system occurred.
Refer to the service manual for more information.
22 Troubleshooting
Example
(a) (b)
SVEO SVS
Installation and operation manual
47