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Hello, my name is***** will assist you.
Was the horn that went off a steady tone or a beeping one?
When was the last time that you had the impellers replaced on both engines?
Was there any text on the monitor screen when the alarm went off?
The steady horn is for overheat. There are three temp senders on this engine. One in each head and one in the air compressor.
Did your tech scan the engine to see which sender went off?
Are you near the boat currently and ready to check some items?
Are you near the boat?
I cannot come out there. This site is question and answer only. I can talk you through how to check the items. Is that what you were looking for?
That could be a T-stat sticking. At what RPM is that pressure reading?
I take it these are used in Salt Water correct?
Yes I am still here. You replied when I was eating lunch.
When was the last time that the impellers were replaced?
At what RPM is the water pressure reading that high?