KACO XP83U-H6 (Canada) - Manual (Page 46)

Page 46
How to check the Ventilation
The Inverter is cooled by top quality variable speed fans.
In the Inverter, air flow is from the top front and expelled at the bottom in the front and back.
1. Check the ventilation air flow by placing a sheet of paper near the vents to ensure air is flowing.
2. If the Inverter does not suck air in or does not blow it out, contact the technical support dept. at KACO
new energy Inc. +1 (415) 931-2046.