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Otis 311 displays 421
Posted By:
KirkP
Otis 311 displays 421 -
10/04/17
07:11 PM
I have a Otis 311 when powered up displays 421 then trips overload. I do not have an Otis service tools. Any leads?
Posted By:
DJ 411
Re: Otis 311 displays 421 -
11/09/17
02:15 PM
421 is the code on the drive telling you to check the drives fault log.
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