@soundave
All mechanical controls are subject to wear and tear, though 6 months does seem like an abnormally short amount of time.
The touchscreen rotary gets the most use and will wear faster than the other rotaries, but please contact us through support.allen-heath.com with more information about:
– The environment the consoles are being used in (temperature ranges, humidity, possibility for dust/ingress)
– How much use the consoles get
– The repair that was carried out (replacement board or single encoder, by A&H service centre)
Thanks,
Keith.