Troubleshooting; Overview: Troubleshooting; Precautions When Troubleshooting; Solving Problems Based On Error Codes - Daikin CO2 Conveni-pack LRYEN10A7Y1 Installer And User Reference Manual

24 Troubleshooting

In this chapter

24.1 Overview: Troubleshooting

24.2 Precautions when troubleshooting

24.3 Solving problems based on error codes

LRYEN10A7Y1+LRNUN5A7Y1
CO₂ Conveni-Pack outdoor unit
4P605460-1 – 2020.08
24.1 Overview: Troubleshooting .................................................................................................................................................... 123
24.2 Precautions when troubleshooting........................................................................................................................................ 123
24.3 Solving problems based on error codes................................................................................................................................. 123
24.3.1 Error codes: Overview............................................................................................................................................ 124
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
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 all possible error codes and their descriptions
as they appear on the user interface.
For detailed troubleshooting of each error, see the service manual.
24 Troubleshooting
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Installer and user reference guide
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