4. Troubleshooting
The focus of this guide is performing troubleshooting using PumpScanner. PumpScanner will
provide specific reasons why the pump system stopped working.
A connection with PumpScanner is not possible?
In this case it is recommended to recover the controller’s ability to connect with PumpScanner
to get access to the actual data.
Case A: Some of the controller LEDs are on, but a connection is not possible. Follow the how-to
article in chapter 6.1 on page 11 to check the most common solutions.
Case B: The controller appears to be completely “dead” (no LEDs): Check the following steps to
identify the cause:
• Check whether there is a short circuit on the controller input → Chapter 6.2 on page 12
• Check the PV Generator → Chapter 6.3 on page 13
• Check the Power Supplies in the PS2 controller → Chapter 6.4 on page 15
• Check the MOSFETS on the Power-Board →Chapter 6.5 on page 18
Connection with PumpScanner
Connect with PumpScanner and check the actual data section:
• Check the displayed data and verify with your own
measurements if necessary.
• Check the LED indicators shown at the bottom of the
“Actual Data” section and check against the list in chapter
5 on page 8 to find out the root cause and adequate
countermeasures.
If the “Actual Data” section does not indicate any problems and
the pump system does not deliver any water, the controller is not
the defective part of the pump system. A mechanical damage
between motor and pump end (broken connection) could be the
reason for the fault.
No success? → raise a ticket
If this troubleshooting Guide has not solved the problem, raise a Support Ticket by providing the
following information:
• All information about the Site, including the installed accessories
• Each step which has been performed (tests/replacements/…), including the measured
results
• All other special details
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