PWM Mode
Solar Charge Controller Manual
ADD
：
No.99 Yonghe Rd,High-Tech Zone,Hefei,Anhui
Phone
：
0551-65372576
http://www.hfjnge.com
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5.3 System maintenance
In order to maintain optimal long-term performance, it is recommended that following inspections be
performed twice a year.
• Verify that controller is securely installed in a clean, dry environment.
• Make sure airflow around controller is not blocked and remove any dirt or debris from radiator.
• Inspect all exposed wires for insulation damage due to sun exposure, friction with surrounding
objects, dry rot, insect or rodent damage.If necessary, repair or replace conductor.
• Tighten screws on all electrical connection terminals as recommended.
• Check grounding of all components of system to verify that all grounding wires are firmly and
correctly grounded.
• Check all terminals for signs of corrosion, insulation damage, high temperature or burning,
discoloration, and tighten terminal screws to recommended torque.
• Check for dirt, nesting insects and corrosion and clean as required.
• If arrester has failed, replace failed arrester in time to prevent lightning damage to controller or
even other equipment of user.
Attention
：
electric shock risk!
Make sure that all power supply of controller is disconnected when above operation is carried
out, and check or operate accordingly
！
6.Warranty commitment
Controller is guaranteed free of charge for one year, starting from the date of sale.
• Maintenance procedures before requesting maintenance, check with the user's manual to determine
if there is a problem with the controller
。
If this cannot be resolved, return controller in question to us,
prepaid, and provide date and place information relevant to purchase
。
In order to enjoy quick repair
guarantee service, returned products must be marked with model number, serial number and detailed
reason for failure, as well as type and related parameters of components in system, battery and system
load
；
This information is important to quickly address your maintenance needs.
If controller is damaged due to improper use or failure to follow this manual, company shall not be
liable
！
Maintenance procedures refer to above procedure, only maintenance cost is charged.
Declaration
：
The company reserves right to change products without prior notice
！
version number:V1.0