Buzzer on Yanmar 3GM30 control panel

[AndyL]

It used to sound when starting and stopping the engine; now it doesn't. The "test" switch shows it is still working. The charging and oil pressure lights work as before. Bad key switch? Any ideas what I should check?

Cheers.

 

[DanTribe]

Hi
It could be a faulty oil pressure switch.Try removing the wire from the switch and grounding to the engine block, if the buzzer sounds then that's the problem.I think the switch is low down, front right hand as you look aft.
Dan

 

[AndyL]

Thanks. I\'ll try that tomorrow. Let you know. nm

.

 

[AndyL]

Now I think about it,

the oil pressure light is working fine, so it seems the pressure switch should be working. I'll try grounding the wire anyway.
Cheers,

 

[jfkal]

I had the same. Was a "sticky" oilpressure switch. Did affect the oil light as well though.

 

[AndyL]

The oil pressure switch

appears to be working. I tried removing the wire and grounding it as Dan suggested, nothing happened. Latest theory is it could be the temperature switch sticking. Something else to look at when I get time.
Cheers, Andy