9. Maintenance and Cleaning
9.1 Replacing the Thermal Fuses
Using incorrect thermal fuses may irreparably damage the solar charge controller.
• Only use the thermal fuses included in the scope of delivery
1. Open the solar charge controller as described in section "Opening the solar charge
controller"
2. Remove the broken thermal fuses from the sockets (A and B).
3. Insert new thermal fuses (included in the scope of delivery).
4. Close the solar charge controller as described in section "Closing the solar charge
controller".
5. Remember always connect the batteries before the solar panels or you will
permanently damage the controller.
Note: To clean simply wipe the outside with a lightly dampened cloth. If unit has
been opened use an air spray such as a keyboard cleaner to blow out the internal
dust that may accumulate inside the controller.
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