31 HPT USER MANUAL
11. SYSTEM MAINTENANCE
For the inverter’s long-term performance, it is suggested to maintain your inverter
regularly:
Content Maintenance Measures Cycle
System
Cleaning
• Check if the heat sink is covered and dusted
• Maintenance of DC Switch can be performed at
night. Turn the switch to ON and OFF positions
for 4~5 times.
• Use a wet cloth to clean the display
Annually OR Half a year
System Status
• Inspect the enclosure for damage/deformation
• Listen for abnormal noises during operation
• Check if the parameters are normal during
operation
Half a year
Commissioning
•Check if the cables are loose
•Check if the cable insulations are damaged,
especially the parts in contact with metal surfaces
Half a year after first
commissioning
Annually OR Half a year
Grounding • Check if the cables are securely grounded
Half a year after first
commissioning
Annually OR Half a year
NOTICE：
HEAT SINK MIGHT INDUCE INJURY
When the inverter is operating, the heat sink might exceed 60℃
• Please disconnect all electrical cables and connections. Wait for the inverter to
cool down completely.
• Use compressed air cleaning or a soft brush to clean the inverter heat sink.
• ALL aggressive chemicals, cleaning solvents or strong detergents are FORBIDDED
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