Troubleshooting - AquaScape 400 Instruction And Maintenance Manual

1b. A centering bushing is required on both ends of the
impeller shaft; one bushing is located inside the pump
and an outer bushing sits in the Water Chamber Cover.
2. Slide the first interior bearing washer onto the ceramic shaft.
3. Place the ceramic impeller shaft into the pump, checking
to be sure the centering bushing seats inside the pump.
4. Carefully slide the impeller back onto the shaft. Use
caution: the Impeller Assembly is magnetic and will be
forcefully pulled back into the pump.
1b
2
3
4
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5. Install second outer bearing washer over the
impeller shaft.
6. Replace Water Chamber Assembly, containing the
impeller shaft centering bushing by sliding it over the
impeller shaft and then rotating it clockwise to lock it
into place over the tabs on the pump housing.
7. Replace the Pump Cover and Filter Sponge by snapping
them back onto the pump housing.
• Winter Storage – If concerned about possible freeze
damage, disconnect the tubing from the discharge fitting
and remove the pump from the water. Clean the pump
and inlet screens with fresh water and store the pump in
a frost-free location. The pump can be run during cold
weather, if desired, but should be removed in the event of
a power failure to prevent any freeze damage to either the
pump or the piping.

Troubleshooting

• Reduced Water Flow
– It may be necessary to clean the front
cover, filter sponge and impeller.
• Pump Hums and Doesn't Push Water
– It may be necessary to clean the front cover,
filter sponge and impeller.
– Remove the water chamber cover and inspect
and clean the impeller rotor assembly and
internal pump body.
– Make sure nothing is blocking
or wrapped around the impeller.
– Make sure the pump is receiving the correct voltage.
• Pump Not Working
– The ground-fault circuit-interrupter (GFCI)
may have tripped
– The pump is not receiving the correct voltage.
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