Need some troubleshooting advice. Yanmar
4JH4-TE. When the key is placed to ON, the Battery
picture (Alternator) light illuminates (correct as designed) and the red low oil
pressure light on the oil
pressure gauge illuminates (correct as designed), however the alarm
is not sounding as it normally should.
is running, the oil pressure is normal, light is off and alternator
light is extinguished.
Took the panel off...removed/reset some plugs...took a general look around...drank a beer
. Put it back together. Problem still exists.
itself is a piezo on a printed circuit board...next trip to the boat, I was thinking I could meter the poles of the speaker for dc volts when the key is on.
In this thread
someone had a similar, but opposite problem (his alarm won't turn off) and he determined it to be an alternator
issue. I only mention this because when the engine
was running, my Raymarine
ST 60+ graphic display was alarming low volts...8.9v. This was new also and may be completely unrelated...or not.
Thoughts? Troubleshooting ideas?