Troubleshooting; Overview: Troubleshooting; Precautions When Troubleshooting; Solving Problems Based On Error Codes - Daikin VRV 5 RXYA8A7Y1B Installer And User Manual

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Troubleshooting

25 Troubleshooting
In this chapter

25.1 Overview: Troubleshooting

25.2 Precautions when troubleshooting

25.3 Solving problems based on error codes

Installer and user reference guide
176
CAUTION
See "3 Specific installer safety
complies with all safety regulations.
25.1 Overview: Troubleshooting .................................................................................................................................................... 176
25.2 Precautions when troubleshooting........................................................................................................................................ 176
25.3 Solving problems based on error codes................................................................................................................................. 176
25.3.1 Error codes: Overview............................................................................................................................................ 177
25.4 Refrigerant leak detection system ......................................................................................................................................... 184
Before troubleshooting
Carry out a thorough visual inspection of the unit and look for obvious defects such
as loose connections or defective wiring.
DANGER: RISK OF ELECTROCUTION
DANGER: RISK OF BURNING/SCALDING
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.
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.
In case of a displayed malfunction code, perform correcting actions as explained in
the malfunction code table.
4
instructions" [ 14] to make sure troubleshooting
RYMA5+RXYA8~20A7Y1B
VRV 5 heat pump
4P749918-1 – 2023.12