Kasco Marine 4400HJF - Manual (Page 19)

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you are noticing these symptoms, the unit should be
unplugged immediately because the Thermal Overload
will continue to turn on and off until it burns out and
damages the motor. The unit should be unplugged and
taken out of the water to find the cause of the problem.
The problem could be one of many, such as, low water
levels, build-up on the unit to prevent heat dissipation,
something inhibiting the free rotation of the shaft, etc.
If something is caught in the unit or there is a build-up
of algae, calcium or organic matter on the unit, remove
the debris and, if caught early enough, the unit should
be fine. Contact a Kasco representative before restart-
ing the unit.
“My Fountain flow seems to fluctuate and/or be less
than usual.”
This can occur because of a few different rea-
sons. Most of the time, this symptom is caused from
unit being clogged with debris. A mat of weeds, many
leaves, plastic bags, etc. can clog up the unit and cause
it to be starved of water. If the unit does not have the
proper amount of water, the flow or pattern will fluc-
tuate up and down and look sporadic. If you are see-
ing these symptoms, unplug the unit and clean away
the debris that is clogging up the screen. Another
possibility if these symptoms are noticed, is a chipped
or damaged prop that is causing the unit to wobble and
not pump properly. When the unit is unplugged, check
the prop for damages and replace if damage is found.
“The GFI breaker trips randomly and sporadically.
Sometimes it is a few hours of operation, other times it
can be days or weeks.”
This is referred to as a Nuisance Trip. This
usually occurs where the unit is installed a great
distance from the initial electric service on the prop-
erty where the ground stake is placed. It is caused by
either induced current in the ground wire or a base
voltage difference due to soil pH levels. To resolve
the problem, contact an electrician and install a local
grounding stake. This may eliminate the induced cur-
rent and any base voltage differences. This problem
can also be caused by a bad breaker or receptacle or
having unbalanced incoming voltage lines.