After a period of operation, the water tank of the heating fan has developed a layer of foreign matter and dust on its surface. If not cleaned, it will affect the heat dissipation. The blower motor, after long-term operation, requires maintenance and replacement. This process must be judged and maintained by professionals; it is not advisable to disassemble the motor privately, as this can easily cause short circuits and prevent the motor from turning, leading to minor issues like blown fuses or more severe problems such as burning wires and fires. The ventilation tube of the motor must not be removed; doing so can cause the motor to overheat and burn out. The variable resistance allows the motor to shift gears; however, if used continuously on the first or second gear, it can easily lead to a burnt-out resistor, affecting normal operation. If this issue is detected, it should be replaced promptly. After long-term use, the operating cables of the control system may become aged and deformed, making the operation less smooth or incomplete. Avoid forcibly moving the controls to prevent damage to the components. If this problem is identified, it should be taken to a service station for assessment and repairs or replacements as needed. The ventilation pipes, also known as the 1st and 2nd rubber hoses of the heating fan, are prone to aging and cracking due to long-term use in high-temperature conditions. If a problem is detected, it should be replaced promptly to avoid leaks, which can cause the water temperature to rise excessively and deform the engine cylinder head. When replacing the rubber hoses, use those compatible with the Xiali car model; substandard hoses are not resistant to corrosion.
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