Fault Finding Chart - Grundfos GENI Montage- Und Betriebsanleitung

11. Fault finding chart

Before starting any work on the module, make sure that the elec-
tricity supply to the pump and the module has been switched off
and that it cannot be accidentally switched on.
Fault
The pump does not
react to the input
start/stop, MIN, MAX
or 10 V.
The pump does not
send the correct sig-
nal from the signal
relay.
16
Cause
The wires are not con-
nected correctly to the
terminal block.
The pump was stopped
on the control panel or
with the R100.
GENI module not
mounted correctly.
GENI module defective.
Control box defective.
The wires are not con-
nected correctly to the
terminal block.
Signal relay not config-
ured correctly.
GENI module not
mounted correctly.
GENI module defective.
Control box defective.
Remedy
Connect the wires cor-
rectly.
Set the pump back to
normal duty.
Mount the GENI module
correctly.
Replace the GENI mod-
ule.
Replace the control
box.
Connect the wires cor-
rectly.
Configure the signal re-
lay correctly.
The R100 can be used.
Mount the GENI module
correctly.
Replace the GENI mod-
ule.
Replace the control
box.