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Problems with ZWO EAF

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#1 PABresler

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Posted 04 July 2020 - 04:51 PM

I am posting here in lieu of support from ZWO which currently is not available. My ZWO 7 position EAF stopped working. It will not calibrate. The wheel seems to turn normally, but when I select "recalibrate" it gives an error message to move the O ring, or just keeps spinning. Either the sensor is bad (which I actually kind of doubt), or it needs a software reset.  Any suggestions? I hope its not another trip to China!

 

Peter

 

 



#2 santafe retiree

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Posted 04 July 2020 - 05:53 PM

Under the " For Developers" Tab here:

 

https://astronomy-im...oftware-drivers

 

there is an EFW Test Tool

 

It may be of some assistance -- of course YMMV

 

Cheers,

 

Tom



#3 PABresler

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Posted 04 July 2020 - 07:32 PM

Same thing....just keeps spinning. I guess its on the fritz. This China stuff with ZWO is getting old!



#4 OldManSky

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Posted 05 July 2020 - 09:45 PM

Dust/dirt on the optical sensor is much more likely that a hardware failure. Try a gentle cleaning first.



#5 PABresler

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Posted 05 July 2020 - 09:49 PM

I had the unit apart...can you tell me what the sensor is?



#6 OldManSky

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Posted 06 July 2020 - 07:59 AM

The infrared sensor is located on the PCB at the bottom, under the hole shown by the red arrow in the photo.

Make sure the outside holes (one of which the arrow is pointing to) aren't blocked by some dust or dirt, and that the sensor itself isn't dirty/dusty.

Attached Thumbnails

  • zwoeafsensor.jpg



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