H290 warning buzzer stopped working. Any ideas?

[SteveH290]

The warning buzzer has stopped working when starting the motor on my H290. Red lights come on and off as normal.

Any ideas if this is a sensor, wiring, or buzzer problem to fix?

Thanks.

 

[Steve Dion]

You may want to check the connections/voltage at the buzzer. I would assume that this is not very expensive to replace. I doubt that you need a Yanmar part.

Check out Del City for a replacement.

http://www.delcity.net/

 

[Benny17441]

Hope is not the buzzer as the replacement part is around $190. The problem could be in the wiring, or it could be in the buzzer itself. I would start by testing the buzzer, remove and peel away some of the insulation to the wires, in the multi-lead type the center at the top will be the (+) lead with the ones on both sides going to the sensors and ground(-). Connect jump wires directly to a battery and if the buzzer sounds your problem is in the wiring if not the buzzer is bad. Some enterprising sailors have connected a Jet Ski buzzer in lieu of the yanmar but to replace a multi-lead with a two lead requires some fancy wiring. Good luck.

 

[Bill Roosa]

If you need a buzzer try digikey.com. They have every kind avalable to man.

 

[Ken13559]

I assume you have a Yanmar engine/panel. The buzzer has 3 circuits with diode in each. You need to find out whether buzzer is faulty or only the circuit concern is faulty. If it is just one or 2 circuit faulty (usually the diodes) then you can use the spare cct (for sail drive rubber seal, assuming you have shaft drive) as replacement. Just need to rewire it.

 

[SteveH290]

Thank you.

 

[robertsapp]

1. Disconnect the wiring harness from the buzzer and remove the buzzer from the control panel.
2. Take a hot and ground lead from a 12v battery and test the buzzer's inputs. The top center is ground, the two left and two right pins are inputs.
3. If the buzzer buzzes with 12v on each input, your problem is with your sender.

When we bought our boat, we never got an alarm for oil pressure when starting up. Not good. When I did the above test, I found that three of the four buzzer inputs were good, but the one for oil pressure was bad. Probably fried internally. I picked up a pin extraction tool at Radio Shack for about five or six bucks, and swapped the pins for the oil pressure line and the spare line (not used unless you have a saildrive) at the harness plug. Now everything works. Total invested - about six bucks.