Troubleshooting; Overview: Troubleshooting; Precautions When Troubleshooting; Solving Problems Based On Error Codes - Daikin RXYSQ4T8VB Series Installer And User Reference Manual

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Troubleshooting

24 Troubleshooting
In this chapter

24.1 Overview: Troubleshooting

24.2 Precautions when troubleshooting

24.3 Solving problems based on error codes

Installer and user reference guide
122
24.1 Overview: Troubleshooting .................................................................................................................................................... 122
24.2 Precautions when troubleshooting........................................................................................................................................ 122
24.3 Solving problems based on error codes................................................................................................................................. 122
24.3.1 Error codes: Overview............................................................................................................................................ 123
Before troubleshooting
Carry out a thorough visual inspection of the unit and look for obvious defects such
as loose connections or defective wiring.
WARNING
▪
When carrying out an inspection on the switch box of the unit, ALWAYS make
sure that the unit is disconnected from the mains. Turn off the respective circuit
breaker.
▪
When a safety device was activated, stop the unit and find out why the safety
device was activated before resetting it. NEVER shunt safety devices or change
their values to a value other than the factory default setting. If you are unable to
find the cause of the problem, call your dealer.
DANGER: RISK OF ELECTROCUTION
WARNING
Prevent hazards due to inadvertent resetting of the thermal cut-out: power to this
appliance MUST NOT be supplied through an external switching device, such as a
timer, or connected to a circuit that is regularly turned ON and OFF by the utility.
DANGER: RISK OF BURNING/SCALDING
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.
INFORMATION
If a malfunction occurs, the error code is displayed on the user interface of the
indoor unit.
RXYSQ4~6T8V/YB
VRV IV-S system air conditioner
4P482277-1B – 2020.10