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Old 05-09-2019, 13:13   #16
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Re: Chirping alarm from Yanmar panel

I had the problem with the chirping alarm on my Yanmar panel also. I finally figured out that it was caused by a poor wire connection. I had two red wires that were connected together in a spade type connector to my hour meter. Gently pullling them off the hour meter caused one of them to pull out of the connector. I put a new spade type connector on the two now properly crimped wires and the beeping went away. This was on a 3GM30F engine.
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Old 19-04-2020, 06:03   #17
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Re: Chirping alarm from Yanmar panel

I finally ended the chirping for good, but again, did two things at once: I stopped buying off-the-counter pressure senders and installed Yanmar sender; and I cleaned out the engine by running for 20 or so minutes with 50% solvent in the oil before replacing. Thanks for your advice. Not much was applied, but it was all good knowledge.
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Old 08-05-2020, 10:31   #18
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Re: Chirping alarm from Yanmar panel

Just to put my foot in.......when I purchased mine boat has a ysb8, just warning lights, no buzzers. Purchased a 2 tone alarm from catalina. Hooked one to the oil pressure, the other to temp. works like a charm and don't have to rely on lights, don't really remember which tone is which but will certainly wake me up if it goes off. Test it 2 or 3 times a season. Of course low press goes off when starting.
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Old 08-05-2020, 10:47   #19
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Re: Chirping alarm from Yanmar panel

Quote:
Originally Posted by sailorchic34 View Post
First verify the lights light up. My first guess is the temp sensor is going bad or the engine really is over heating and the high temp light is not working.

Do you have oil and or temperature gauges?

The buzzer is only connected to the lo oil pressure switch and the high temp. It is not connected to the alternator charge indicator. Could also be a bad buzzer too.

A bad t-stat would cause overheating too
I'd go with her first guess. Temp and oil pressure sending
units, sensors, can be erratic.
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