Epever XTRA N Series User Manual page 38


Make sure no block on air-flow around the controller. Clear up any dirt and
fragments on heat sink.

Check all the naked wires to make sure insulation is not damaged for sun
exposure, frictional wear, dryness, insects or rats etc. Repair or replace some
wires if necessary.

Tighten all the terminals. Inspect for loose, broken, or burnt wire connections.

Check and confirm that LED is consistent with required. Pay attention to any
troubleshooting or error indication .Take corrective action if necessary.

Confirm that all the system components are ground connected tightly and
correctly.

Confirm that all the terminals have no corrosion, insulation damaged, high
temperature or burnt/discolored sign, tighten terminal screws to the suggested
torque.

Clear up dirt, nesting insects and corrosion in time.

Check and confirm that lightning arrester is in good condition. Replace a new
one in time to avoid damaging of the controller and even other equipments.
WARNING：Risk of electric shock!
Make sure that all the power is turned off before above operations,
and then follow the corresponding inspections and operations.
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