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What can cause an OHF or overheating fault on the ATS46 soft starters?

Published date: 11 January 2019

Issue:
ATS46 soft starters overheating?

Product Line:
Altistart ATS46

Environment:
All

Cause:
The soft starter is overheating

Resolution:
OHF is an overheating fault.  Power down the soft starter and let it cool down.   Power back up and if the fault clears run the soft starter.  If the fault comes back up then you may have a bad thermal sensor or main control board.


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