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Craig HenryAug 28, 2025
What should I do if my ABB PSTX470 displays 'Heatsink overtemperature'?
- MMarie JohnsonAug 28, 2025
Ensure that the fans are functioning correctly and that the airways are free from dirt and dust. Also, verify that the ambient temperature is not too high. If the fault persists after a reset, the heatsink is still too hot and needs to cool down.









