Fault: The Unit Runs But Does Not Pump; Fault: The Unit Runs, But Not Within Stated Operating Parameters; Fault: The Unit Does Not Run Smoothly And Is Noisy; Fault: Mechanical Shaft Seal Leak, Moisture Sensors Report A Fault Or Shut Down The Unit - salmson Rocsan lix Manuel D'installation Et Mise En Service

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• Have a specialist inspect the connection and the switch-
ing system and correct as necessary
5. Incorrect direction of rotation
• Swap the 2 phases from the mains supply
6. Impeller impeded by adhesive material, blockages and/or
solid matter, increased current consumption
• Switch off the unit, secure it against being switched on
again and free the impeller or clean the intake port
7. The pumped liquid is too dense
• Contact the manufacturer
9.3.

Fault: The unit runs but does not pump

1. No pumped liquid
• Open the container intake or sliders
2. Intake blocked
• Clean the intake, slider, intake port or intake strainer
3. Impeller blocked or obstructed
• Switch off the unit, secure it against being switched on
again and free the impeller
4. Defective hose or pipeline
• Replace defective parts
5. Intermittent operation
• Check the control panel
9.4. Fault: The unit runs, but not within stated operating
parameters
1. Intake blocked
• Clean the intake, slider, intake port or intake strainer
2. Slider in the discharge pipe closed
• Fully open the slider
3. Impeller blocked or obstructed
• Switch off the unit, secure it against being switched on
again and free the impeller
4. Incorrect direction of rotation
• Replace two phases on the mains supply
5. Air in the system
• Check the pipelines, pressure shroud and/or hydraulics,
and bleed if necessary
6. Unit is pumping against excessive pressure
• Check the slider in the discharge pipe. If necessary,
open it completely, use a different impeller or contact
the factory
7. Signs of wear
• Replace worn parts
8. Defective hose or pipeline
• Replace defective parts
9. Inadmissible levels of gas in the pumped liquid
• Contact the manufacturer
10. Two-phase operation
• Have a specialist inspect the connection and correct it
as necessary
11. Excessive decrease in the water table during operation
• Check the supply and capacity of the system, and in-
spect the level control settings and functionality
9.5.

Fault: The unit does not run smoothly and is noisy

1. Unit is operating in an inadmissible range
• Check the operational data of the unit and correct if
necessary, and/or adjust the operating conditions
2. The intake port, strainer and/or impeller is blocked
• Clean the intake port, strainer and/or impeller
3. The impeller is obstructed
• Switch off the unit, secure it against being switched on
again and free the impeller
4. Inadmissible levels of gas in the pumped liquid
• Contact the manufacturer
5. Two-phase operation
• Have a specialist inspect the connection and correct it
as necessary
6. Incorrect direction of rotation
• Replace two phases on the mains supply
7. Signs of wear
• Replace worn parts
8. Defective motor bearing
• Contact the manufacturer
9. The unit is installed under mechanical strain
• Check the installation, use rubber spacers if necessary
9.6. Fault: Mechanical shaft seal leak, moisture sensors re-
port a fault or shut down the unit
1. Condensation build-up due to lengthy storage and/or
temperature fluctuations
• Operate the unit briefly (max. 5 min.) without
moisture sensors
2. Increased leakage when running in new mechanical
shaft seals
• Change the oil
3. Defective moisture sensor cables
• Replace the moisture sensors
4. Mechanical shaft seal is defective
• Replace the mechanical shaft seal and contact
the factory
9.7.

Further steps for troubleshooting

If the points listed here do not rectify the fault, contact Salmson
customer service. They can help you as follows:
• Telephone or written support from Salmson customer
service
• On-site support from Salmson customer service
• Inspection or repair of the unit at the factory
Please note that you may be charged for some services provided
by our customer support. For more details, please contact Salmson
customer service.
10.

Spare parts

Spare parts can be ordered from Salmson customer service. To
avoid queries and incorrect orders, the serial and/or article number
must always be suppled.
Technical changes reserved
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