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Troubleshooting
Installer and user reference guide
46
RYMA5+RXYA8~20A7Y1B
VRV 5 heat pump
4P749918-1 – 2023.12
Main code
Contents
External protection device was activated
The R32 sensor in one of the indoor units has detected a
refrigerant leak
(a)
The R32 sensor in one of the SV unit has detected a refrigerant
leak.
/
Safety system error (leak detection)
(a)
EEPROM failure (indoor)
Drain system malfunction (indoor/SV unit)
Fan motor malfunction (indoor)
Swing flap motor malfunction (indoor)
Expansion valve malfunction (indoor)
Drain malfunction (indoor unit)
Filter dust chamber malfunction (indoor)
Capacity setting malfunction (indoor)
Transmission malfunction between main PCB and sub PCB
(indoor)
Heat exchanger thermistor malfunction (indoor; liquid)
Heat exchanger thermistor malfunction (indoor; gas)
Suction air thermistor malfunction (indoor)
Discharge air thermistor malfunction (indoor)
Movement detector or floor temperature sensor malfunction
(indoor)
R32 sensor malfunction in one of the indoor units
(a)
R32 sensor end of lifetime in one of the indoor units
(a)
R32 sensor end of lifetime<6 months in one of the indoor units
(a)
Waiting for indoor unit R32 sensor replacement input
(a)
Waiting for SV unit replacement input
SV unit R32 sensor malfunction
Less than 6 months before the SV unit R32 sensor end of lifetime
SV unit R32 sensor end of lifetime
User interface thermistor malfunction (indoor)
PCB malfunction (outdoor)
Current leakage detector was activated (outdoor)
High pressure switch was activated
Low pressure malfunction (outdoor)
Compressor lock detection (outdoor)
Fan motor malfunction (outdoor)
Electronic expansion valve malfunction (outdoor)
Summary of Contents for VRV 5 RXYA8A7Y1B
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