Alternator light.

[ricicles]

First trip away this year . Alternator light came on but goes out at higher revs.
I have measured the voltage from the alternator . Its showing 11v at tickover.
Should it be more or is this normal at tickover.
Should I be looking for a fault elsewhere?

[Jim San]

Low charge. 
belt slack, poor earth, poor connection at terminals are first things to check.

Worn brushes, simple and easy fix, change brush pack.

[Mocki]

It should be 14.5v ideally as soon as the engine is running . Tickover shout be any different , it’s alternator not a dynamo! 

It’s the brush pack .

when you measure the out put voltage measure the the back of the alternator, using the casing as neg .
then measure again using the van body as neg , any difference and you need to clean the alternator amounting points and earthnstraps . 

[tobydog]

As Mocki said, the likes of:

https://www.brickwerks.co.uk/t3-parts/e ... 14-5v.html