Recently, we were sailing with the engine (Yanmar 2GM) OFF and no key in the ignition, when the engine alarm buzzer started sounding a little. Within seconds, it got ouder and all three warning lights went on - engine still off! We also noticed that the needle indicating engine RPMs was moving between 5000 and 10000. Engine still off. We had to turn off all batteries in order to silence the alarm. When we switched the battery back on, same thing. We then started the engine (while alarms where still on) - all works fine and alarms went off with engine running. Then killed engine a - same effect, all alarms and lights came on. Maybe a faulty ground somewhere? Any other thoughts l?
Engine Alarms
- Thread starter haebby
- Start date
Mine did the same thing this weekend. Did you find the Problem? It has me stumped at the moment. (Yanmar 2GM with B style Panel)
In our case, it was a faulty test switch - the switch in the middle of the panel (version B) that you use to (a) test one of the alarm lights and the buzzer, and (b) to turn on/off the tachometer light. Once that switch was replaced, no more alarms.