New return pump running very HOT

[banditpowdercoat]

I would be unpluging the pump if its that hot. But the pump is not adding the heat. If it is THAT hot that you can not touch it, I would assume it's heating the sump air, which is heating the water. The motor is not in contact with the wate, so can not directly transfer heat.

But a motor that is that hot can be dangerous, and possibly catch fire.

[cav~firez22]

The Reeflo pumps have a Thermal shutdown switch, so i wouldnt worry about it too much. I have a dart, and mine gets ... by the sounds of it, as hot as yours, or hotter, but has never shut off.

One thing i did was dissassemble the motor cover, and take it out side, and went after it with an aircompressor. There was a lot of .... crap in there, after that it ran much cooler. also if you leave the rear cover off, just watch for the fan, it runs a bit cooler, and quiter too.

[tlo]

well, I talked to reeflo today. He thinks it is due to the valving back, even though it sounds as though other people have throttled back this much successfully. Anybody want a new barracuda pump???

[fragNplug]

id put my money on the type of inlet reducing the flow too much making the pump work harder then it should.
also since its an external pump would it really affect your water temp?
the actully pumping part is separated from the motor.

my dart told me not to reduce the inlet pipe size and to keep the line strait without any bends.

[whatcaneyedo]

For high head pressure applications like your sump's return you would probably be served better by a high pressure pump rather than a high flow pump anyways. The Panworld are said to be less expensive version of the Iwaki which are a top of the line Japanese pump.