Reconditioned alternator fitted today at local garage, tested the voltage and was charging ok.
Took a quick blip to get the dash light to go out then had a 5 minute drive to shops, came back out now the light stays on. Took it for a run out no better.
Before I have to go out of my way to take it back in would anyone suggest a reason for this on the assumption the new alternator is actually working fine? (No means to test it myself).