Hello have a Schindler 330 with QKS16 door operator given me 202 fault saying KET-O KET-S inputs in same state has 220 to drive unit but no door operation manual or auto there is no magnetic reed door open lumit switch that I can find looks like drive is bad but very expensive like to know for sure thanks in advance.

Swindler was eating labor cost if customers updated that drive they knew junk or life expectancy coming soon

GAL offers a drop in upgrade drive and motor, we have changed quite a few out.

So this drive does not have KET-O magnetic open limit must do it Thur the encoder I would guess.

Correct

so possibly bad encoder?

Yes sir, very possible.