Xylem LOWARA ecocirc PRO - 7 Troubleshooting Guide; 7.1 Troubleshooting Precautions; 7.2 Error Signal Interpretation; 7.3 Pump Not Running Issues

en – Original Instructions
28 ecocirc PRO – Installation, Operation and Maintenance Manual
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
LED light status
Normal operation, the pump is running Continuous on
Air purge sequence is active Blinking 200 ms on - 200 ms off - 200 ms on…
Standby mode Blinking 50 ms on - 1.5 s off - 50 ms on…
Low voltage failure Blinking 1 x short – 1 x long…
Overtemperature failure Blinking 3 x short – 1 x long…
Speed feedback failure Blinking 4 x short – 1 x long…
Blocked rotor Blinking 5 x short – 1 x long…
7.3 Pump not running
Cause
Remedy
Not connected or connected incorrectly Connect correctly
Pump too hot, dry operation- or overheating
protection active
Allow to cool, pump restarts automatically
Pump blocked See section
6.3 Disassembly
7.4 Pump running for 1 minute periods only (temperature controlled models only)
Cause
Remedy
Water temperature signal is interrupted Replace pump
7.5 Pump is noisy
Cause
Remedy
Not thoroughly air purged See section
5.4 Air purge
Foreign objects in pump See section
6.3 Disassembly
Worn bearing Replace pump