Volvo md2020 oil pressure alarm

[fontmell]

Help and advice please
Left berth under engine all ok, sailed for a while and upon re starting engine the
Oil warnings sound
My guess is the pressure switch. Has anyone a different opinion? is it possible
To test the switch, if so how and finally if it is the switch is it easy to change?
Very many thanks in advance..

 

[VicS]

Help and advice please
Left berth under engine all ok, sailed for a while and upon re starting engine the
Oil warnings sound
My guess is the pressure switch. Has anyone a different opinion? is it possible
To test the switch, if so how and finally if it is the switch is it easy to change?
Very many thanks in advance..

Disconnect and check with a multimeter on ohms also check that oil warning goes off when disconnected.

Note some MD2020s have insulated negative therefore the switch will have two wires. (A white/blue one and a black one) Others do not.( white/ blue only) Early ones have the isolated negative I think.

Just unscrew and screw in new one