Please read our ZWO EFW Software Manual to learn more about how
to use it with various software and operating systems.
https://astronomy-imaging-camera.com/manuals/
Trouble shooting common problems with your EFW:
1.
My EFW tries to move but gets stuck and cannot arrive at the right position.
1)
Filter is too thick: Filters (not including the threads) must be less than
7mm in thickness and threads must be
less than 3mm in thickness.
2)
The M2 screw used to secure the filter
is too long and causes the wheel to
jam.
3)
The M42 thread of the scope or the
camera is too long and protrudes into
the filter wheel, hitting the filter or
wheel, causing it to jam.
2.
My EFW spins but never stops, or stops at the wrong position.
ZWO EFW uses an infrared sensor to check wheel position. If the
sensor malfunctions, you can usually resolve by recalibrating the EFW in
the ASCOM driver. Simply click "
ReCalibrate
" in ASCOM driver interface. It
can take up to 60 seconds to perform this action.
3.
I use 7-position EFW, normally I had slots 1, 2, 3, 4 filled and slots 5, 6, 7 empty,
but then I got the error below and the EFW stopped working. I checked the
carousel. It was not too tight or loose.
This is OK
This is too long
