Further Product Information; Disposal - Grundfos PM 2 Installation And Operating Instructions

Fault Cause
8. System a) Cycling.
without
pressure tank:
The red
b) Cycling.
"Alarm"
indicator light
flashes once
per period.
9. System with a) Cycling.
pressure tank:
The red
"Alarm"
indicator light
flashes once
per period.
10. The red a) Maximum continuous operating
"Alarm"
indicator light
flashes twice
per period.
11. The red a) Too many start/stop sequences
"Alarm"
indicator light
flashes three
times per
period, and
b) Too many start/stop sequences
each pump
start is delayed
a few seconds.
12. The red a) Pressure sensor fault.
"Alarm"
indicator light
flashes four
times per
period.
* See service instructions on www.grundfos.com > International website > WebCAPS > Service.

13. Further product information

Further information and technical details for the
Grundfos PM 2 can be found on www.grundfos.com
> International website > WebCAPS.
If you have any questions, feel free to contact the
nearest Grundfos company or service workshop.

14. Disposal

This product or parts of it must be disposed of in an
environmentally sound way:
1. Use the public or private waste collection
services.
2. If this is not possible, contact the nearest
Grundfos company or service workshop.
16
A tap has not been closed entirely
after use.
There is a minor leakage in the
system.
The pressure tank has no
precharge pressure, or the tank
size is insufficient.
time (30 minutes).
The pump has been running
continuously for 30 minutes.
within a short period.
The pressure tank has no
precharge pressure, or the tank
size is insufficient.
within a short period.
The PM 2 is set to start/stop with 1
bar differential pressure, i.e. DIP
switch 5 is set to "ON", but no
pressure tank has been installed in
the system.
Remedy
Check that all taps have been closed.
See section 8.2 Anti-cycling.
Check the system for leakages.
See section 8.2 Anti-cycling.
Check the tank precharge pressure, and
recharge the tank, if necessary.
If the size of the pressure tank is insufficient,
set DIP switch 5 to "OFF", or replace the
pressure tank.
See section 8.2 Anti-cycling.
Check the system for leakages.
Disable the function to allow the pump to run
for 30 minutes.
See section 8.3 Maximum continuous
operating time (30 minutes).
Check the tank precharge pressure, and
recharge the tank, if necessary.
If the size of the pressure tank is insufficient,
set DIP switch 5 to "OFF", or replace the
pressure tank.
Set DIP switch 5 to "OFF".
Repair or replace the PM unit.*
Subject to alterations.