YN-C Buck series solar charge controller
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5.3 system maintenance
In order to maintain optimal long-term performance, it is recommended to perform the
following checks twice a year.
Verify that the controller is securely installed in a clean, dry environment.
(1) Confirm that the controller is firmly installed in a clean and dry environment.
(2) Check that all exposed wires are damaged by the sun, friction with other objects
around them, dryness, insect or rodent damage. Repair or replace the wires if
necessary.
(3) Tighten the screws of all electrical connection terminals as recommended.
(4) Check the grounding of all parts of the system and verify that all grounding conductors
are securely and properly grounded.
(5) Check all terminals for corrosion, insulation damage, high temperature or signs of
burning, discoloration, and tighten the terminal screws to the recommended torque.
(6) Check for dirt, nesting insects and corrosion, and clean as required.
(7) If the arrester has failed, replace the failed arrester in time to prevent lightning damage
to the controller or even other equipment of the user.
Note: Danger of electric shock!
When doing this, you must ensure that all power to the controller has been
disconnected before performing the appropriate checks or operations!
VI. Warranty commitment
The MPPT controller has a one-year free warranty and the warranty period begins on the
date of sale.
Repair Procedures Before requesting repairs, check the user manual to determine if
the controller does have a problem. If this is not possible, return the problem controller to
the company, prepay the shipping fee, and provide date and location information related to
the purchase. In order to enjoy the fast return warranty service, the returned product must
indicate the model, serial number and the detailed cause of the fault, as well as the type of
components in the system and related parameters, battery and system load conditions; this
information is very important for quickly solving your repair requirements. .
If the controller is damaged due to improper use of the customer or failure to follow this
manual, the company is not responsible for it! The maintenance procedure is carried out in
accordance with the above procedure and only the maintenance cost is charged.
