carrier 450 oil fault

[weechief]

oil fault, low oil. topped up with oil but fault will not reset i was told it would reset automaticaly but it dosent

[Boss302]

If the unit doens't crank and comes up eng. oil then you have an alternator problem more than likely. The D+ circuit should only have power when the alternator is charging, yours is probably hot all of the time and the micro thinks the eng. is running.

[djbe]

At a guess alternator brush pack.

[abbsnowman]

More likely a bad diode in alternator?

[Vandman]

You make have a broken wire on your oil pressure circuit.

based on experience though, ive seen more alternators cause that than broken wires on OP circuit.

Do you have any scrap / extra reefers around? if you do try to re / re the alternator. P/N 30-00409-10. Be sure to disconnect battery before you start.

[abbsnowman]

Hey Vandman, were are you?

[Vandman]

I live in waterloo ontario

[Boss302]

If it is a broken wire to the oil press. switch, the unit will start and then shut down on "ENG OIL". If it is a problem with the alt. it won't even crank.