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    Hebei Nanfeng Automobile Equipment (Group) Co.,Ltd

    Phone: +86 18811334770

    Tel: +86 0317 8620396

    Tel: +86 010 58673556

    Candy Jiao

    E-mail: nh.jiao@auto-parkingheater.com

    Email: nh.li@auto-parkingheater.com

    Add: Room 505, Building B, Free Town Center, No.58, East Third Ring South Road, Chaoyang District, Beijing, 100022, P.R.China

Repair and maintenance of electric heaters

Oct 27, 2022

Repair and maintenance of electric heaters


Coolant heater


Due to the high integration of products, unpacking inspection is not allowed without the permission of the manufacturer. The manufacturer must send electrical personnel with corresponding qualifications to operate and repair.


Before any maintenance work, especially maintenance work, the equipment must be disconnected from the power supply.


The heater must be overhauled at least once a year to ensure that there are no electrical defects in the control system. Local mandatory regulations must be observed.


Water first, then electricity. In any case, the heater is not allowed to dry burn in the air, because it may damage the internal components!


In any case, do not open the box. Even for the purpose of inspection, it may damage the internal precision electronic components.


Only original genuine accessories are allowed for maintenance and replacement to ensure the normal and safe use of the heater.


Measure the current of the electric heater to ensure that all heaters operate normally. The current should be within 33a ± 10%.


(1) before the vehicle is started, the heater button shall always be off.

(2) after the vehicle is started, wait for the current to be stable before starting the heater to avoid multiple functions in the vehicle ringing the vehicle with a movie.

(3) the radiator needs to be opened to operate the heater. The heat of the heater heating coolant cannot be discharged, which may affect the service life of the heater.


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