Pump Starts but Provides Incorrect Circulation
Check pump valves open
Check pump case and system adequately vented (see section 5).
Check correct electrical regulator setting (see section 5).
Noise
Check electrical regulator setting and readjust as required (see section 5).
Noise due to cavitation can be subdued by increasing the system
pressure within the permissible limits.
Pump may require 48 hours to attain normal quiet operation.
Locked Pump
Should the pump fail to start, switch to maximum setting. If the pump still does not start
the manual restart knob can be used to free a locked pump. (see manual restart procedure -
section 5)
Once the pump is running the regulator should be reset to its original position.
8. Relevant Documentation
Spare Parts
No non-approved replacement parts may be used.
13
GB
8573 Nocchi Booklet 12 linguil 4124349:Pentair Water Italy Srl - Reb