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10. TROUBLESHOOTING
WARNING
Before starting any work on the pump, make sure that
the electrical supply has been switched off and that it
cannot be accidentally switched on.
Fault
Control Panel
No Fault
Shows "E1"
Light off
Shows "E2"
The pump does not
run
Shows "E3"
Shows "ER"
Shows watts and
Noise in the system
USgpm
Shows watts and
Noise in the pump
USgpm
Insufficient heat in
Shows watts and
space
USgpm
Cause
Voltage too high or too
low (than ±10%) of the
rated voltage)
No power to the pump
The pump is defective
Jammed rotor
No liquid in the system at
start up.
Miscellaneous internal
failure
Air in the system
The flow is too high
Lock Rotor
Air in the pump
The inlet pressure is too
low
No Water in the pump
The pump performance
setting may be too low
9
AQUAPUMP VARIABLE SPEED CIRCULATING PUMPS
Remedy
Check voltage level of the electricity supply.
Check power supply.
Replace the pump.
Remove the casing and manually unlock the
impeller/rotor.
Fill up the system.
Check voltage of the electricity supply.
Replace the pump.
See section 8.2 Venting of the pump system.
Select a lower speed or pressure curve (see section 9).
Pump settings and pump performance.
Change to another operation mode. If the situation
continues remove the casing and free the rotor.
Let the pump run. It vents itself over time (see section
8.2) venting the pump.
Increase the inlet pressure or check the air volume in the
expansion tank, if installed.
Fill the system.
Select a higher speed or pressure curve setting (see
section 9). Pump settings and pump performance.
Confirm that the system requirement can be met by this
pump capacity or larger pump may be required.
33-00543EF—01
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