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9. Fault finding chart
Warning
Before removing the control box cover, make sure that the electricity supply has been
switched off for at least 5 minutes.
The pumped liquid may be scalding hot and under high pressure. Before any removal or
dismantling of the pump, the system must therefore be drained or the isolating valves on
either side of the pump must be closed.
Indicator light is off.
Indicator light is on.
Indicator light is flashing.
Indicator
lights
Fault
Cause
Remedy
Green Red
The pump is not
running.
One fuse in the installation is
blown/tripped out.
Replace/cut in the fuse.
Check that the electricity supply falls
within the specified range.
The current-operated or voltage-
operated circuit breaker has tripped
out.
Cut in the circuit breaker.
Check that the electricity supply falls
within the specified range.
The pump may be defective.
Replace the pump or call
GRUNDFOS SERVICE for
assistance.
The pump is not
running.
The pump has been stopped in one
of the following ways:
1. With the button
.
2. With the R100.
3. External on/off switch in position
off.
4. Via bus signal.
1. Start the pump by pressing
.
2. Start the pump with the R100 or
by pressing
.
3. Switch on the on/off switch.
4. Start the pump via bus signal.
The pump has
stopped due to a
fault.
Electricity supply failure.
Check that the electricity supply falls
within the specified range.
Pump blocked and/or impurities in
the pump.
Dismantle and clean the pump.
The pump may be defective.
Use the R100 for fault finding, see
section
Replace the pump or call
GRUNDFOS SERVICE for
assistance.
The pump is
running but is
faulty.
The pump is faulty, but is able to
operate.
The pump is able to operate.
Try to reset the fault indication by
briefly switching off the electricity
supply or by pressing the button
,
or
.
Use the R100 for fault finding, see
section
In the case of repeated faults,
contact GRUNDFOS SERVICE.
The pump has
been set to stop
and is faulty.
The pump is faulty, but is able to
operate (has been set to STOP).
Summary of Contents for MAGNA 2000 Series
Page 4: ...4...
Page 163: ...163 6 11 8 8 TM02 5508 3402...
Page 166: ...166 7 2 7 2 1 AUTOADAPT Grundfos AUTOADAPT AUTOADAPT 1 4 2 3 fan coils 1 2 2 3 4...
Page 177: ...177 8 6 8 6 1 0 10 V 8 6 2 Stop R100 BUS 8 6 3 8 6 4 8 6 5 8 6 6 8 6 7...
Page 180: ...180 9 5 1 2 R100 3 on off off 4 bus 1 2 R100 3 on off 4 bus R100 8 5 3...
Page 181: ...181 R100 8 5 3 Grundfos AUTOADAPT AUTOADAPT R100...
Page 310: ...310 1 1 1 1 2 1 3 1 4 1 5 1 6 DIN 4844 W00...
Page 313: ...313 5 4 4 4 5 5 0 C TM02 0640 0301...
Page 316: ...316 7 12 8 8 TM02 5508 3402...
Page 319: ...319 8 2 Grundfos ADAPT ADAPT 1 HN 4 1 2 3 1 HN 2 1 2 3 4...
Page 329: ...329 9 2 5 STOP 9 2 6 0 255 9 3 R100 Grundfos R100 R100 R100 R100...
Page 331: ...331 9 5 R100 R100 9 5 1 9 8 ADAPT R100 ADAPT Q H 9 5 2 ADAPT 9 5 3 9 5 4 A R100...
Page 332: ...332 9 6 9 6 1 0 10 9 6 2 R100 9 6 3 9 6 4 9 6 5 9 6 6 0 9 6 7 0...
Page 335: ...335 10 5 GRUNDFOS 1 2 R100 3 4 1 2 R100 3 4 R100 9 5 3 GRUNDFOS...
Page 336: ...336 R100 9 5 3 Grundfos e ADAPT ADAPT R100...
Page 339: ...339 13 1 2 Grundfos 14 24 Grundfos...
Page 342: ...342 MAGNA 32 120 40 120 50 120 65 120 50 60 65 60 TM02 0477 1004 C NO NC N L O P T S 7 8 3 2 1...
Page 347: ...347 Positioning TM04 3266 4108...
Page 348: ...348...
Page 349: ...349...
Page 350: ...350...