Epsolar LS0512, Instruction Manual

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5.3 Maintenance
The following inspections and maintenance tasks are recommended at
least two times per year for best controller performance.

Check that the controller is securely mounted in a clean and dry
environment.

Check that the air flow and ventilation around the controller is not
blocked. Clear all dirt or fragments on the heat sink.

Check all the naked wires to make sure insulation is not damaged for
serious solarization, frictional wear, dryness, insects or rats etc.
Maintain or replace the wires if necessary.

Tighten all the terminals. Inspect for loose, broken, or burnt wire
connections.

Check and confirm that LED digital tube is consistent with required.
Pay attention to any troubleshooting or error indication .Take
necessary corrective action.

Confirm that all the system components are ground connected
tightly and correctly.