User Manual
 Page 13
Care and Maintenance
mrcool.com
CAUTION
·  DO NOT touch the metal parts of the 
unit when removing the filter. Injuries can 
occur when handling the sharp metal edges.
·  DO NOT use water to clean inside the air 
conditioner. Exposure to water can destroy 
the insulation, leading to possible electric 
shock. 
·  DO NOT wash air filter with water hotter 
than 40°C / 104°F. 
·  DO NOT expose the filter directly to the 
sun, it may shrink. Dry it in the shade.
Before maintenance turn the power off 
to the unit. Then, disconnect the power 
to the circuit at the breaker.
Panel buckles
Before maintenance turn the power off to the unit. 
Then, disconnect the power to the circuit at the 
breaker.
Cleaning the Air Filter continued:
7.  Re-fit air filter back into the unit by reversing steps 2 
and 3 - gently pushing top up into the unit and then 
lowering the bottom into place. 
8.  Close the front panel. Make sure that buckles are 
fully fit and the panel is completely closed. 
Preparation for Extended non-Operation:
If you plan to not run the unit for a long period of time 
(e.g. from the end of summer to the beginning of the 
following summer), perform the following:
1.  Clean the indoor unit and filters as previously 
outlined.
2.  Operate the unit in FAN only mode for at least 8 
hours to dry out the inside of the unit. 
3.  Turn off the unit. Turn off power to the circuit at the 
breaker. The unit should be the only appliance on the 
circuit. 
4.  Remove the batteries from the remote control.
5.  The outdoor unit requires periodic maintenance as 
well. However, do not attempt this on your own. It is 
highly recommended that you contact a qualified service 
professional. 
Pre-Season Inspection: 
After prolonged non-operation perform the following:
1. Check for Damaged or Disconnected wires.
2.  Clean the Indoor Unit and Filters
3.  Check for Water and Oil Leaks
4.  Check for Blockages in Airflow Inlet and Outlet










