Skywatcher Wave 100i, different home position
Today we received a Skywatcher Wave 100i that shows a deviation in the auto-home position.
The declination axis is moving approximately 7° from the target position, which is visible in the saddle's tilt.
Cause:
- Incorrect positioning of the ring, which triggers the sensor.
Temporary workaround for quick troubleshooting:
- The offset of the home position of the declination axis is entered accordingly in the handheld unit or in the SynScan app.
For example, in our case, -7°
Permanent troubleshooting:
ATTENTION! To be performed only by qualified personnel to avoid voiding the warranty.
If the hardware is damaged due to improper handling, such as static discharge or mechanical damage, we reserve the right to exclude warranty claims.
The Wave 100i is equipped with a light barrier, which is triggered by a continuous ring with partial interruption, thus determining the home position.
During inspection, we discovered that the ring was not correctly installed, resulting in the aforementioned misalignment of the declination axis.
This problem is easily remedied. The plastic ring is secured with a grub screw, which becomes visible when the declination axis is rotated. This grub screw is loosened, and the ring is repositioned until the home position is correctly reached.
It is important to ensure that the ring is always held in such a position that it does not hit the light barrier and jam it, or rub against the sensor.

The final fine-tuning can be done by slightly moving the sensor.
The Skywatcher Wave 100i now moves to the home position correctly.
We offer free troubleshooting to affected customers who purchased a mount from us.
We are also happy to troubleshoot mounts not purchased from us for a fee.
Please feel free to inquire about this service.
Clear nights,
Telescope specialists