Troubleshooting - OEG CPA-E Serie Mode D'emploi

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15. Troubleshooting

Warning
Ensure that the power supply is switched off before the
pump is maintained or repaired.
Failure
Pump cannot
be switched
on
Noise
generation
Noises generated
by the
pump
Not hot enough
High-efficiency heating and solar circulation pumps
GB
CPA-E and CPA-E S PWM series
Control panel
Indication light
OFF
E1
E2
In W
Flow rate too high
In W
In W
Cause of failure
Fuse
blown
Circuit breaker
not connected
Motor failure
Undervoltage
Pump stalling
Air in system
Air inside pump
Inlet pressure
too low
Poor pump
performance
Remedy
Replace
fuse
Connect the
circuit breaker
Replace the pump
Check the power
supply
Clean the pump
Bleed the system
Increase the
inlet pressure
Bleed the system
Increase the
inlet pressure
Increase the
inlet pressure