Hi there,<br />I hope that someone can help interpret these symptoms.<br /><br />Just had the boat back from a full engine service and thought that I'd test it before putting back on the water.<br /><br />Ran the engine first of all in a well-filled barrel. This gave a strong flow of slightly warm water from tell-tale, but after a few minutes an intermittent alarm sounded from control unit.<br /><br />Immediately shut down but later on tried running using flush muffs. This time there was no flow from the tell-tale but after a few minutes a continuous alarm sounded.<br /><br />Should I expect a different result at the tell-tale when using flush muffs, and any thoughts on the different alarm tones?<br /><br />Thanks