Xylem IM043 AQUAVAR Variable Speed Pump Control - Manual (Page 65)

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Overloaded
The most common problem is incorrect program settings causing the pump to exceed its duty
range. When this happens, the AQUAVAR controller will shut down the system to protect the
pump and motor. Check programming, maximum system requirements, pump blockage due to
solids, broken mechanical seal, defective non-return valve, pump motor run in reverse, motor
amps, and pump selection. A “Limit” message may also appear before “overloaded” which may
indicate the pump was running beyond rated capacity. A fast setting for Ramp 1 can also cause
this error. Once corrected, the system can be reset by turning it off for at least 30 seconds.
Earth Fault (Short Circuit)
This is a ground fault or short in the electrical system. Possible causes include frayed or faulty
wiring and possible moisture inside the AQUAVAR controller cover. Disconnect the unit from the
main power supply and check the wiring and for possible moisture. When corrected, turn the unit
back on.
Pressure Sensor Error
The pressure or flow sensor is out of order, not connected properly, not zeroed properly, or the
cable is damaged. Check the sensor and zero object and then turn the unit back on.
Error 1 through Error 8
These are program errors within the AQUAVAR controller control system. If one of these errors
occurs, turn the unit off for at least 30 seconds and then back on. If the error is displayed again,
contact your Goulds Pumps AQUAVAR distributor with an exact description of the fault.
Error 1 Eprom Error
Error 2 Security Software Protection Error
Error 4 Keyboard Error, check pushbuttons for proper actuation, or buttons may be held
down by the cover being on too tight.
Error 5 Eprom Error
Error 6 Watchdog Error
Error 7 Processor Pulse Error (Failure of oscillator for processor)
Error 8 Invalid Processor Command Error, power wires and motor leads may be too close
to the control board or communication ribbon. Use separate conduits for power
and control wires.
Inverter Locked
The contacts on X1, terminal strip, 4 and 5, must be open. A jumper wire should be used to
close contacts 4 and 5.
Repair of Faults and Errors