en – Original instructions
SCUBA – Additional Installation, Operation and Maintenance Instructions
25
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
The unit does not start
Cause
Remedy
Power supply cut off
Restore the power supply
Float in the low position
•
Check the liquid level in the well/tank and/or
•
Adjust the float and/or
•
Check that the float can move without impediments.
The thermal overload protection has triggered
See paragraph 7.7
Power supply cord is damaged
Contact Xylem or the Authorised Distributor for the replacement
Capacitor faulty (system with control panel)
Replace the capacitor
Control panel faulty
Check and repair or replace the control panel
Starter set incorrectly, or faulty
Adjust or replace the starter
7.3
There is little or no flow rate and/or pressure
Cause
Remedy
Motor turns in the wrong direction
Check the direction of rotation and change it if necessary
Well liquid level too low
•
Increase the installation depth, and/or
•
Reduce the unit performance levels, and/or
•
Replace the unit with another with lower performance levels.
Check valve locked in closed or partially closed position
Replace the check valve
Suction filter clogged
Clean the filter
Discharge pipe throttled
Remove the throttling
Piping and/or unit clogged
Remove the clogging
Undervoltage
Check the electric power supply
Liquid leaking from the unit due to corrosion or faulty seals
•
Check the installation requirements and the limits of
use, and/or
•
Install the sacrificial anode kit and/or
•
Send the unit to an authorised workshop for testing.
Presence of air in the unit
•
Bleed the unit and/or
•
Make a relief hole, see Guidelines for the hydraulic
system.
