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23
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Troubleshooting
23 Troubleshooting
23.1 Solving problems based on error codes
23.1.1 Error codes: Overview
Code
The R32 sensor has detected a refrigerant leak
/
Safety system error (leak detection)
R32 sensor malfunction
R32 sensor end of lifetime
6 months before the R32 sensor end of lifetime
Malfunction of indoor unit PCB
Drain level control system abnormality
Malfunction of freezing protection
High pressure control in heating, freeze-up protection control in cooling
Malfunction of fan motor
Malfunction of swing flap motor
Malfunction of power supply or AC input overcurrent
Malfunction of electronic expansion valve
Malfunction of a humidifier system
Malfunction of dust collector of air cleaner
Malfunction of capacity setting (Indoor unit PCB)
Failure of transmission (between indoor unit PCB and sub PCB)
Malfunction of liquid pipe thermistor for heat exchanger
Malfunction of gas pipe thermistor for heat exchanger
Malfunction of gas pipe thermistor for heat exchanger
Malfunction of suction air thermistor
Malfunction of discharge air thermistor
Installer and user reference guide
82
If the unit runs into a problem, the user interface displays an error code. It is
important to understand the problem and to take measures before resetting an
error code. This should be done by a licensed installer or by your local dealer.
This chapter gives you an overview of most possible error codes and their
descriptions as they appear on the user interface.
INFORMATION
See the service manual for:
▪
The complete list of error codes
▪
A more detailed troubleshooting guideline for each error
In case other error codes appear, contact your dealer.
Description
FXHA-A
VRV system air conditioner
4P673749-1A – 2022.11
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Table of Contents
Troubleshooting
