I got my boat out of winter storage and the alarm test works when you turn the key on, but then a wierd, sort of muted alarm, sounds constantly. The oil tank is full and the water pump is working. I did the tests from the manual and there was no continuity in the oil tank while it was full. My book tells me it is the alarm module, but how does that just fail while in storage? Is there any possibility of the oil jelling and causing a sensor to stick or plugging a line? If so, how do I unstick it?