14
Care and Maintenance
English
The following inspections and maintenance tasks are recommmended at least twice per year
for best performance:
● Make sure controller is firmly installed in a clean and dry location.
● Make sure there is open air-flow around the controller.
● Clean any dirt or dust that has accumulated on the cooling grid and fan grid.
● Check all exposed wires to make sure insulation has not been damage. Repair or replace
wires if necessary.
● Tighten all teminal connections to suggested torque. Inspect for loose, broken, or burnt
wire connections.
● Make sure that all ground connections are tight and secure.
● Confirm that all terminals are free of corrosion and damage to insulation.
● 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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