Install Instructions

7 Troubleshooting
7.1 Precautions
Before starting work, make sure that the safety instructions in the chapter
Introduction and Safety on page 3 have been read and understood.
DANGER: Electrical Hazard
Troubleshooting a live control panel exposes personnel to
hazardous voltages. Electrical troubleshooting must be done by
a qualified electrician.
DANGER: Crush Hazard
Moving parts can entangle or crush. Always disconnect and lock
out power before servicing to prevent unexpected startup.
Failure to do so could result in death or serious injury.
7.2
Insufficient cooling or heating of the pump
LED status Cause Remedy
Green The performance of the
pump is low.
1. Do one of the following methods to start the pump:
– Increase the speed of the pump to increase the head
– Select another operating mode
2. If the problem continues, replace the pump.
Yellow The night mode is
activated.
1. Deactivate the night mode.
2. If the problem continues, replace the pump.
Blinks red The dry run of the pump is
detected.
1. Check that the pump does not contain air.
2. Check that the liquid pressure of the pump is according to the
working limits.
3. Check that the pump is installed correctly.
4. Start the air purge process.
5. If the problem continues, replace the pump.
7.3 The pump does not start
The LED is on.
LED status Error Cause Remedy
Blinks yellow Off The selector is set to
the standby mode.
Select one of these operating modes 1, 2, 3, A, B, C, I, II
and III.
Red E02 The supply of current
to the motor is too
high.
1. Reset the error.
For more information, see Reset the error on page 23.
2. If the problem continues, replace the pump.
7 Troubleshooting
26 Ecocirc+ 20-18 Installation, Operation, and Maintenance Manual