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Self-priming automatic electric pumps with helical gears, produced by Marco.

Pump gears are not turning.

We’ve installed the pump one year ago on our boat. We left the boat for six months and when coming back today, the pump was not working anymore. It blinks 24 (or 25?) times red and the an orange light. It repeats this for three cycles and then the red led signals overcharge. I guess the gears are not turning. I’ve added water to the chamber, but still the same. Can anyone help?

Thanks!

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Hi @preinmann

What is the model number of the pump?

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Hi @jayeff

It‘s a UP3/E pump.

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Hi @preinmann

According to the user manual it could be a faulty motor, a problem with the gears (blocked?) or even a power problem.

After 6 months of not being used have you checked if the power supply that is supplying the pump is still the correct voltage i.e. 12V or 24V depending on what it's using?

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Preinmann will be eternally grateful.
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