Troubleshooting; Precautions; Insufficient Cooling Or Heating Of The Pump; The Pump Does Not Start - Xylem Bell & Gossett Ecocirc+ 20-18 Installation, Operation And Maintenance Manual

7 Troubleshooting

7 Troubleshooting

7.1 Precautions

Before starting work, make sure that the safety instructions in the chapter
Introduction and Safety
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
Green The performance of the
pump is low.
Yellow The night mode is
activated.
Blinks red The dry run of the pump is
detected.

7.3 The pump does not start

The LED is on.
LED status Error
Blinks yellow Off
Red E02
26
on page 3 have been read and understood.
Remedy
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.
1. Deactivate the night mode.
2. If the problem continues, replace the pump.
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.
Cause Remedy
The selector is set to Select one of these operating modes 1, 2, 3, A, B, C, I, II
the standby mode. and III.
The supply of current 1. Reset the error.
to the motor is too
high.
2. If the problem continues, replace the pump.
Ecocirc+ 20-18 Installation, Operation, and Maintenance Manual
For more information, see Reset the error on page 23.