Troubleshooting - Graco QUANTM i30 Instructions Manual

Troubleshooting

Troubleshooting
Problem
Equipment emits beeping
alert sound, LED light
yellow
LED light flashing
Equipment cycles, but
does not prime or pump (It
is normal operation for
auto-prime to run and then
stop once the pump is
primed).
Equipment does not hold
fluid pressure at stall
Equipment leaking fluid
‡
externally from joints
30
Cause
Pump starting automatic startup sequence.
Pump is connected to a power source and
the control knob (K) is not set to the off (0)
position.
Equipment error; special-case cause.
Equipment running too fast, causing
cavitation before prime.
Fluid not detected by the auto-prime sensor.
Check is worn or wedged in the seat or
manifold.
Worn seat.
Restricted outlet or inlet port.
Loose inlet fittings or manifolds.
Damaged manifold seats.
Worn check, seats, or seals.
Loose manifold connections or fluid
connections.
Loose diaphragm shaft fastener.
Loose manifold connections or fluid cover
connections.
Worn manifold seats or seals.
Follow the Pressure Relief Procedure, page 22,
before checking or repairing the equipment.
Check all possible problems and causes before
disassembling equipment.
Solution
Turn the control knob (K) to the off (0)
position or disconnect power to the
system.
If prepared to operate, allow the pump to
complete the automatic startup sequence.
See Troubleshoot LED Indicator Event
Errors, page 26.
Slow down the motor speed.
Ensure the suction end of the fluid supply
line (F) is inserted into the fluid to be
dispensed.
Allow the auto-prime sequence to run for
30 seconds.
Replace check and seat.
Replace check and seat.
Remove restriction.
Tighten.
Replace.
Replace.
Tighten.
Tighten.
Tighten.
Replace.
3A8572B