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en – Original Instructions
7 Troubleshooting
7.1
Precautions
WARNING:
Maintenance must be done by a technician possessing the technical-professional requirements
outlined in the current regulations.
WARNING:
Observe the safety requirements in the chapters on Use and Operation and Maintenance.
WARNING:
If a fault cannot be corrected or is not mentioned, contact Xylem or the Authorised Distributor.
7.2
Error signals
The pump is equipped with self-diagnostics and malfunction detection. Defects detected by the
pump system are signalled to the user with alternating short and long LED light flashes.
Operating mode / Error code
Normal operation, the pump is running
Air purge sequence is active
Standby mode
Low voltage failure
Overtemperature failure
Speed feedback failure
Blocked rotor
7.3
Pump not running
Cause
Not connected or connected incorrectly
Pump too hot, dry operation- or overheating
protection active
Pump blocked
7.4
Pump running for 1 minute periods only
Cause
Water temperature signal is interrupted
7.5
Pump is noisy
Cause
Not thoroughly air purged
Foreign objects in pump
Worn bearing
28
LED light status
Continuous on
Blinking 200 ms on - 200 ms off - 200 ms on...
Blinking 50 ms on - 1.5 s off - 50 ms on...
Blinking 1 x short – 1 x long...
Blinking 3 x short – 1 x long...
Blinking 4 x short – 1 x long...
Blinking 5 x short – 1 x long...
Remedy
Connect correctly
Allow to cool, pump restarts automatically
See section 6.3 Disassembly
(temperature controlled models only)
Remedy
Replace pump
Remedy
See section 5.4 Air purge
See section 6.3 Disassembly
Replace pump
ecocirc PRO – Installation, Operation and Maintenance Manual
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