Table of contents
User reference guide
3
ATXM20~50N2V1B
Daikin room air conditioner
4P518786-2F – 2020.05
5.13.2 Night quiet mode............................................................................................................................................ 33
5.13.3 Cooling/heating mode lock ............................................................................................................................ 34
6 Energy saving and optimum operation 35
7 Maintenance and service 37
7.1 Overview: Maintenance and service .............................................................................................................................. 37
7.2 To clean the indoor unit and user interface................................................................................................................... 38
7.3 To clean the front panel ................................................................................................................................................. 38
7.4 To remove the front panel.............................................................................................................................................. 39
7.5 About the air filters......................................................................................................................................................... 39
7.6 To clean the air filters ..................................................................................................................................................... 39
7.7 To clean the titanium apatite deodorizing filter ............................................................................................................ 40
7.8 To replace the titanium apatite deodorizing filter......................................................................................................... 41
7.9 To re-install the front panel............................................................................................................................................ 42
7.10 To take following items into account before a long idle period.................................................................................... 42
8 Troubleshooting 43
8.1 Symptoms that are NOT system malfunctions............................................................................................................... 45
8.1.1 Symptom: A sound like water flowing is heard ............................................................................................. 45
8.1.2 Symptom: A blowing sound is heard.............................................................................................................. 45
8.1.3 Symptom: A ticking sound is heard................................................................................................................ 45
8.1.4 Symptom: A whistling sound is heard............................................................................................................ 45
8.1.5 Symptom: A clicking sound during operation or idle time is heard .............................................................. 45
8.1.6 Symptom: A clapping sound is heard............................................................................................................. 45
8.1.7 Symptom: White mist comes out of a unit (Indoor unit, outdoor unit)........................................................ 46
8.1.8 Symptom: The units can give off odours ....................................................................................................... 46
8.1.9 Symptom: The outdoor fan rotates while the air conditioner is not in operation ....................................... 46
8.2 Solving problems based on error codes ......................................................................................................................... 46
8.3 Troubleshooting for wireless connection adapter......................................................................................................... 47
8.4 Solving problems based on the LED on the outdoor unit .............................................................................................. 49
9 Disposal 51
10 Glossary 52
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