BERNT LORENTZ GmbH
Siebenstücken 24, 24558 Henstedt-Ulzburg, Germany,
Tel (+49) 0 4193 8806-700, www.lorentz.de
All specifications and information are given with good intent, errors are possible and products may be subject to change without notice.
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Guide for troubleshooting for PS2 pump controller
5. PumpScanner error codes
The following table shows all errors which could be displayed in PumpScanner. Possible actions
are listed which you can perform to troubleshoot.
5.1. Pump off reason:
The controller detected an open connection between terminal 1 and 2. There
are two plausible scenarios for this case:
• the connected sensor is defective
• there is a failure inside the controller
Please follow the step-by-step guide in chapter 6.6 on page 21 to detect the
reason why the pump has stopped
The controller detected an open connection between terminal T3 an T4. There
are two plausible scenarios for this case:
• the connected sensor is defective
• there is a failure inside the controller
Please follow the step-by-step guide in chapter 6.6 on page 21 to detect the
reason why the pump has stopped
The controller detected an open connection between terminal 14 and 15. There
are two plausible scenarios for this case:
• the connected sensor is defective
• there is a failure inside the controller
Please follow the step-by-step guide in chapter 6.6 on page 21 to detect the
reason why the pump has stopped
The controller was not able to reach the min speed and detected a too high
current, but enough PV Power is available. There are two plausible scenarios for
this case:
• the motor is stuck
• the pump end is stuck
The pump system tries to restart every 4 minutes.
Please check motor and pump end by turning the shaft/rotor and replace them
if needed.
Overvoltage will be displayed if the max. allowed input voltage for the
controller is exceeded. The controller will not start as a safety measure as long
as the voltage is too high. A too high voltage will damage the controller
permanently. Please check the input voltage on the controller. Please follow
the step-by-step guide in chapter 6.3 on page 13. If the voltage is indeed too
high, change the configuration of the PV Generator.
If PumpScanner still shows the wrong value, replace the Power-Board.
Manual Software
Switch Off
The pump system is stopped by PumpScanner setting. This software settings
override the hardware switch. Connect with the controller using PumpScanner
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