Please check the maker and model number and inform us through "inquiry form" or contact the service center. We will arrange the repair with an outsourced company.
It is thought that the cause is due to clogging of the drainage section inside the air conditioner or the drain hose.
Failure to clean the air conditioner filter may cause malfunction of the main unit, clogging of the drain hose, leakage of water, odor. Please kindly clean the unit regularly.
Please refer here about air conditioner cleaning.