For more specific information regarding installation or to download the full manual, it is highly recommended to search for the official documentation on the .
Aim directly at the unit, check battery polarity ( −negative ), or replace batteries.
To be precise:
Adjusts temperature automatically for comfortable sleeping conditions. Operation Tips
"YWM15L-AM LDA" manual filetype:pdf
: Automatically adjusts the temperature over a 2-hour period (rising up to 2°C in cooling mode) to maintain comfort while saving energy. Self-Diagnosis
Clogged filters restrict airflow, causing the evaporator coils to freeze. Clean them every two weeks. york ywm15l-amlda manual
Use a soft, dry cloth to clean the exterior of the indoor unit.