Cold temperature warning signal

[EdwardinSTX]

While motoring recently, I got a cold temperature warning signal (a constant whistle).

Any idea what I should do about this? Is it serious?

 

[Bill Roosa]

I don't think I've ever heard of a cold temp warning on any engine. Even if you take the thermostate compleatly out the engine still warms up to over 100 deg F.
How do you know it was a cold temp warining?

 

[Alex Dare]

Sounds like either an overheat or a low oil pressure warning buzzer.

 

[EdwardinSTX]

Oops! Should be "cold water temperature warning signal"

 

[Bill Roosa]

Is this part of your speed sensor?

some speed sensors also have a SEA water temp sensor. You can set it to alarm for both cold and hot water.
Your speed sensor manual can tell you how to turn the alarm off.

 

[Ed H]

Re: Is this part of your speed sensor?

My wife serves as my cold temperature warning device- She won't go to the boat with me until it warms up outside.

 

[EdwardinSTX]

When the whistling started, an LCD message came on. "Cold water temperature"

 

[Rich Stidger]

Edward,

Just to be clear, what panel or instrument was this cold water alarm coming from? And were there any other anomalies at the same time? What was the make and model of the device that was producing the alarm?