Poor heating/cooling of air conditioners

^{1. Improper use and maintenance}

^{Solution: In the winter when using central air conditioning heating should pay attention to the house sealing, observe the outdoor unit with or without frost, ice, do not force hot water for frost and ice, such as trouble should be promptly contacted with the Tianjin Bote environmental after-sales department. Encountering failure should stop using and contact professional central air conditioning maintenance personnel to check and repair.}

^{2. Fluorine deficiency}

^{Solution: Central air conditioning suspected lack of fluorine, please call the Tianjin Bote Environmental After-sales Hotline to report, by the after-sales service personnel to check and repair.}

^{3. Environmental externalities}

^{Solution: When using the central air conditioner, if the regional voltage is too high or too low, contact the power supply department to solve the voltage problem before using the central air conditioner.}

^{4. Central air conditioner accumulates too much dust}

^{Solution: too much dust accumulation in the central air conditioner is not a fault, belongs to the scope of maintenance of the central air conditioner, you can contact a professional maintenance unit.}