23
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Troubleshooting
Installer and user reference guide
127
RXYTQ
VRV IV+ heat pump for high ambient temperatures
4P561157-1B – 2021.11
23 Troubleshooting
In this chapter
23.1 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
Example
Main code
Sub code
With an interval of 1 second, the display will switch between main code and sub
code.
23.2 Error codes: Overview
In case other error codes appear, contact your dealer.
Main code
Sub code
Cause
Solution
Master
Slave 1
Slave 2
Earth leakage detector
activated
Restart the unit. If the
problem reoccurs, contact
your dealer.
Earth leakage detector
malfunction: open circuit) -
A1P (X101A)
Check connection on PCB or
actuator.
