Midea CSU 12HCAA, Руководство по установке и обслуживанию

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VII. Troubleshooting
installation & Maintenance Manual
1. Precautions for malfunction repair:
(1) Before repairing, check the power supply to see if it is normal, also check the
connection of indoor and outdoor units to see if there is any error in connection.
(2) Play attention to the following items during repair:
Before disassembling the front panel, unit box, top plate and control panel,
disconnect the power supply.
When moving the control panel, please hold its edges, don't press any components.
When disassembling and installing connecting cable, please hold the plug instead
of pulling the cable.
cable
cable plug
Pay attention to the following items during fault handling
Check the operation pilot lamp on the indoor unit to see if it's flashing, and
confirm the fault indication by 2 or 3 times.
If the fault is in the control panel, check its components to see if components
burnout or turned colors, and check the connection terminal to see if the
connection is correct.
When a fault occurs, make check and repair according to "Troubleshooting
Flow Chart" and "Table for Fault Handling and Repairing".
Replace batteries for remote controller
Old batteries will affect normal operation, old batteries must be replaced.
After replacing, press the "reset" button on the back of the remote controller.
reset button
Special attention:
Indoor unit may not receive signals from remote controller in room with
florescent light because periodically-connected high-voltage manostat
or blocking oscillator (electric rectifier) are used.