Been around boats all my life and I haven’t ever seen a bilge pump do this. Wiring looked great, no blown fuse and no signs of what caused the failure besides heat.
Rick E. (aka RicardoMarine) Gresham, Oregon
2850 Bounty Sedan Flybridge model 31' LOA
Twin 280 HP 5.7's w/ Closed Cooling systems
Volvo Penta Duo Prop Drives
Kohler 4 CZ Gen Set
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It WAS one of my forward bilge pumps. Pump next to it looks and works perfect. No source of heat there besides other bilge pump and shower sump pump. My holding tank is nearby and maybe somebody ate some really spicy food.
Even if it got left on and ran dry it shouldn't ever allow this to happen.
It’s an electric motor, if it were left running for whatever reason without water to keep it cool it could definitely get very hot. What amperage fuse was installed?
It’s an electric motor, if it were left running for whatever reason without water to keep it cool it could definitely get very hot. What amperage fuse was installed?
Maybe if it had bad bearings and ran for a long time else these are designed to run dry without damage.
Not all motors overheat when stalled. Shaded pole motors for example don't care if turning or not. I don't know the fuse rating but, it was the original pump to the boat and wiring.
I think I'm putting this in the CFM category. (Complete Frigging Mystery)
Definitly change the fuse, copper can hold up regardless of what the NEC rates it for, but the plastic will only melt like that from a locked rotor and heated windings
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