: Controls the vertical louver for adjustable up/down airflow. 2. Maintenance & Care
Look at the manual’s “Mode” button options. If “Heat” is an option, it is a heat pump model. Many 15L units are “cool only” unless specified as “YWM15L-AMlDA/H.” Verify your manual. york ywm15l-amlda manual
A dirty filter is the #1 cause of poor cooling. The manual will show: : Controls the vertical louver for adjustable up/down
Uses R-22 gas, a traditional refrigerant often found in standard or older-generation models. slide the filters out
Open the front panel, slide the filters out, and wash them with mild soapy water. Let them dry completely before reinserting.