Re: Just had about 500 motor stall comm errors on Mach2

Ray Gralak

Hi Marty,

Can you try updating to version V1.9 includes a bug-fix that may solve the issue.


-----Original Message-----
From: [] On Behalf Of mjb87 via
Sent: Tuesday, September 7, 2021 5:15 PM
Subject: [ap-gto] Just had about 500 motor stall comm errors on Mach2

Actually, I'm at 520 such motor stall errors and climbing! I've tried to move the mount (via SGPro and
SkySafari) and have encountered this issue every time. I've encountered dozens (hundreds) of such errors
anytime now I try to move the mount. There are no unusual noises coming from the mount. I have not used
the mount in about 4 weeks but nothing has changed since the last successful session a month ago. Here is
image I took before it reached the maximum number of errors:

Mach2 with latest firmware
Power via PSVPW25A -- no apparent issues
Connected via TCP LAN with USB backup

What are my next steps?

PS: I had an issue with the mount earlier in which a couple of washers had come lose from the RA control unit
but I sorted that out.

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