Midea Tropical R410A High Efficient Duct Technical Manual 50Hz MCAC-UTSM-201707
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9. Maintenance
9.1 Operation required before leaving the unit idle for a long period.
Let the air conditioner run in the fan mode for about half a day, and let its interior be fully dry.
Switch off the power by the button in remote or wired controller, and then cut off the power
supply.
When the main power switch is turned on, a certain extent of electric power is consumed
even if the air conditioner does not run. Turning off the main power switch can save energy.
Remove the batteries out of the remote controller.
After the air conditioner has been in service for several seasons, foreign substance
accumulates inside the unit to an extent dependent on the working conditions. Therefore,
shut down the air conditioner through the
ON/OFF
button of the controller, and then cut off
the power supply.
Startup after a long period out of service.
Check the following issues:
Check whether the air inlet or outlet of the indoor unit and outdoor unit is blocked.
Check whether the ground wire is connected properly.
Check whether the condensate water is discharged normally.
Check whether the insulation work of refrigerant circuit and ventilating duct is on sound
status.
Check whether the installing seat is corroded or rusted.
9.2 Maintenance and upkeep of outdoor unit
The edge of some sheet metal assemblies and the fin of the condenser are very sharp.
Incorrect operation may cause harm. Be cautious when cleaning them up.
Check the air inlet and outlet of the outdoor unit periodically to see whether they are
blocked by stain or lampblack.
9.3 Motor and evaporator maintenance (Only available for Model: 18, 24 and 36 indoor unit)
Shut down the unit and cut off power supply before maintain.
Remove off the ventilated panel.
Remove off a half of motor housing.