Daikin CVXM20A2V1B User Reference Manual page 3

CVXM20+FVXM25~50A2V1B
Split system air conditioners
4P625990-1A - 2020.10
6.14 About Multi system......................................................................................................................................................... 40
6.14.1 Priority room setting ...................................................................................................................................... 40
6.14.2 Night quiet mode............................................................................................................................................ 41
6.14.3 Cooling/heating mode lock in Multi-system.................................................................................................. 41
7 Energy saving and optimum operation
8 Maintenance and service
8.1 Overview: Maintenance and service .............................................................................................................................. 44
8.2 To clean the indoor unit and user interface................................................................................................................... 45
8.3 To clean the front panel ................................................................................................................................................. 46
8.4 About the air filters......................................................................................................................................................... 46
8.5 To remove the filters ...................................................................................................................................................... 47
8.6 To clean the air filter....................................................................................................................................................... 47
8.7 To clean the titanium apatite deodorising filter ............................................................................................................ 48
8.8 To replace the titanium apatite deodorising filter......................................................................................................... 48
8.9 To reinstall the filters ...................................................................................................................................................... 48
8.10 To re-install the front panel............................................................................................................................................ 49
8.11 To take following items into account before a long idle period .................................................................................... 50
9 Troubleshooting
9.1 Troubleshooting for wireless LAN connection ............................................................................................................... 53
9.2 Symptoms that are NOT system malfunctions............................................................................................................... 53
9.2.1 Symptom: Airflow temperature is not high enough during Heat plus operation......................................... 54
9.2.2 Symptom: A sound like water flowing is heard ............................................................................................. 54
9.2.3 Symptom: A blowing sound is heard.............................................................................................................. 54
9.2.4 Symptom: A ticking sound is heard................................................................................................................ 54
9.2.5 Symptom: A whistling sound is heard............................................................................................................ 54
9.2.6 Symptom: A clicking sound during operation or idle time is heard .............................................................. 54
9.2.7 Symptom: A clapping sound is heard............................................................................................................. 54
9.2.8 Symptom: White mist comes out of a unit (Indoor unit) .............................................................................. 54
9.2.9 Symptom: The units can give off odours ....................................................................................................... 54
9.2.10 Symptom: The outdoor fan rotates while the air conditioner is not in operation ....................................... 55
9.2.11 Symptom: Fan speed does not correspond with the setpoint...................................................................... 55
9.3 Solving problems based on error codes ......................................................................................................................... 55
10 Disposal
11 Glossary
Table of contents
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User reference guide
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