Before freezing weather
Read the exact owner manual for operating limits, outdoor-unit clearances, defrost behavior, drainage, and warnings before winter operation. Source: MRCOOL installation and owner manual
Keep the outdoor unit and required clearances free of obstructions using only owner-permitted care in the manual. Source: MRCOOL installation and owner manual
Arrange qualified service when ice, water, noise, damage, or an error condition falls outside the owner-manual checks. Source: MRCOOL installation and owner manual