GA90+ Fan motor overload open fault will not clear

by Allan
(Alberta Canada )

I have a GA90+ Fan motor overload open fault will not clear.


I am working on a ga 90 +. It was continuously shutting down on fan motor overload open. I replaced the overload relay but the fault will not clear. This unit does have a variable speed Drive for the fan.

If anyone has any suggestions I am listening.

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Jan 08, 2017
i have the same issue with zt250
by: asiri

I did replace the two over load for fan1 and fan2 but the alarm still there and also emergency stop alarm I cannot clear them.
the fans are ok and pass the meggar test.
what I found is there is missing 24v from wire no.53 that come from the mange screen.
if any one have idea

Oct 14, 2016
GA90+ Fan motor overload open fault will not clear
by: Doug in s.d.ca

Does the motor (M2) try to turn at all?

The error suggests to me that it is somehow disconnected - the "open" in error message.

Let us know if/when you get it fixed and what the fix was, please.

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