According to the [https://items.marco.it/media//attach/booklet/UP3-E_00_US.pdf|user manual] it could be a faulty motor, a problem with the gears or even a power problem.
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According to the [link|https://items.marco.it/media//attach/booklet/UP3-E_00_US.pdf|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?
Hi @preinmann
According to the [https://items.marco.it/media//attach/booklet/UP3-E_00_US.pdf|user manual] it could be a faulty motor, a problem with the gears 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?