Check before use
1. Check whether all the air inlets and outlets of the units are unblocked.
2. Check whether there is blocking in the water outlet of the drain pipe, and
immediately clean it up if any.
3. Check the ground wire is reliably grounded.
4. Check whether the remote controller batteries are installed, and whether the power
is sufficient.
5. Check whether there is damage in the mounting bracket of the outdoor unit, and if
any, please contact costumer service.
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