Glow controller

[marinaman]

Hi all
Just got new Beru controller,  can anyone tell me what the round button thing is for on the front.  you can rotate it like a knob  tried to upload but wont let me,, im sure most diesel drivers will know what it is.

[Horizon]

[quote="marinaman"]
Hi all
Just got new Beru controller,  can anyone tell me what the round button thing is for on the front.  you can rotate it like a knob  tried to upload but wont let me,, im sure most diesel drivers will know what it is.


[/quote]
It's just a waterproof bung, just prized mine out with a spoon, on my old controller that is

[marinaman]

Great  thanks for that,  wonder why not just mould it over when producing the it . odd.

[Upex]

Could it be a valve of sorts, ie if gets hot in there, it allows some to escape before the controller explodes from pressure, or perhaps so moisture can vent or some such thing?

Had the same thought when changed mine lol

[X5Sport]

Adjuster below it?  Used to final set the unit?

[Horizon]

[quote="X5Sport"]
Adjuster below it?  Used to final set the unit?
[/quote]
That's what I thought it might have been, when you look inside you can see the resin coating the PCB, the hole could be where they port in the resin to waterproof the unit.