f0003 fault in abb abb acs355 drive

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How can resolve problem F0003 Fault in ABB ACS355 Drive?

Drive heatsink is overheated. Temperature is at or above limit.
R1...R4: 115 °C (239 °F)
R5, R6: 125 °C (257 °F)
Check for and correct:
• Fan failure.
• Obstructions in the air flow.
• Dirt or dust coating on the heat sink.
• Excessive ambient temperature.
• Excessive motor load.

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