ChrisNiceButDim

It runs on 4 AAs Yes I suspected that so put brand new ones in. Still the same fault. :-/

Many thanks I will try this although as far as I can tell flashing LED's indicate an error. I've even opened it up to see if I can detect any change of rate during pulses but can't. Like you say though maybe the movements are very small. I have increased the guide steps to over 2500 though and still no star moment.

Has anyone managed to successfully guide a Star Adventurer? I tried earlier tonight. Callibration fails due to lack of star movement so I thought I'd test the ST4 connection. When I try manual guide through PHD2 the LEDs blink as soon as I send an East or West pulse to the mount and there's no sign of any movement. This happens even when there is nothing on the mount. I assumed this flashing was to show it was receiving commands but there's no mention in any of the documentation that this should be the case. Blinking LEDs indicate either a firmware update is taking place or a motor error caused by excessive load for example. The mounts works well unguided so I'm wondering if anyone else has had experience of guiding or blinking LEDs. Thanks in advance for any opinions or advice.