14
Care and Maintenance
English
The following inspections and maintenance tasks are recommmended at least twice per year
for best performance:
Ɣ Make sure controller is firmly installed in a clean and dry location.
Ɣ Make sure there is open air-flow around the controller.
Ɣ Clean any dirt or dust that has accumulated on the cooling grid and fan grid.
Ɣ Check all of the exposed wires to make sure insulation is not damaged from serious
solarization, frictional wear, dryness, insects or pests etc. Repair or replace wires if
necessary.
Ɣ Tighten all of the terminals. Inspect for loose, broken, or burnt wire connections.
Ɣ Pay attention to any troubleshooting or error indication.Take corrective action if necessary.
Ɣ Confirm that all system components ground connections are tight and correct.
Ɣ Confirm that all the terminals have no corrosion, no insulation damage, no signs of high
temperature damage (discolored or burnt).
Ɣ Tighten terminal screws to the suggested torque.
Ɣ Clear all dirt, nesting insects and corrosion from terminals.
Ɣ Confirm that lightning arrester is in good condition. Replace if necessary.
WARNING
Risk of electric shock!
Make sure that all the power is turned off before above inspection and maintenance tasks,
and then follow the corresponding inspections and operations.
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