Hey there! I have a compass 28 with a yanmar YSE8. A couple of times when I have started it the coolant light and alarm have stayed on. After a few minutes it stopped again but I knew something was up. Recently I went aboard just to let the engine run for a bit and it started normally with the light and alarm going off as soon as it started but after running for about 5 minutes it came on again. This was the first time it has done so after being running for an amount of time. Water is running out the back as usual so not sure what is wrong!! Can anyone help please? Thanks!