When using the filter wheel it is very important to keep its internal
balance. The weight and distribution of the filters will affect balance. Thus
we recommend you space the filters out and evenly distribute them. In this
case, install them in slots 1, 3, 5 and 7, then the EFW will work again.
If this does not resolve your problem, please submit it on the ZWO support
page:
https://support.astronomy-imaging-camera.com/
. Our customer
service will help!
