High temp warning sounding off

[BrenBray]

I have a 2006, 50HP Mercury, 2 stroke. Today we were in the river and had the high temp warning alarm sound off. I immediately looked back and saw that there was still water flowing from the pee hole. Did not appear to be running hot, but I shut it down anyway. After a while, I turned on the key and still heard the buzzer. To make a long story short, I found that if I have the motor tilted slightly upward, the buzzer will sound. Any ideas on what this could be and if it is an easy fix that I can do at home? Thanks in advance.

 

[hkeiner]

Re: High temp warning sounding off

Instead of guessing, it is usually less frustrating to use systematic troubleshooting methods to determine the cause. With the help of a shop manual, you should first determine whether the warning is caused by a defective sender, defective wiring, or actual overheating of the motor. A multimeter is the tool that you would need.

Having said that, one could guess (and it is only a guess) that you may have a problem with the wiring if the tilt effect is immediate (tilting causes the wiring to move and short the circuit) or a problem with the water intake if the tilt effect is delayed (motor needs time to overheat). A better guess would depend on how far you have to tilt the motor to affect the warning alarm and how consistent the effect is.

Just my thoughts...

 

[BrenBray]

Re: High temp warning sounding off

Thanks for the input, but I just figured out that the alarm I was hearing was the low oil alarm. Stupid on my part, but at least I figured it out.