Pentair Fleck 3150 NXT Installer Manual page 163

• system size: ex. programmed for 4 units, but there are only 2 units;
• units of measure do not correspond between the different valves of the system;
• wrong type of valve programmed.
More than one unit programmed with the same
position number (NXT only).
Flashing display.
Units of measure do not correspond: units have
different units of measure programmed.
System size: the number of units in the system
does not correspond to the number
programmed and vice versa.
10.3 Examples of error displayed
10.3.1 NXT controller
• The unit 2 has been reset;
– Reprogram the unit.
• there is no message from unit 3;
– The number indicate the unit to be checked in the system.
– Check that communication cables are connected.
– Check the valve address.
• there are more units in the system than programmed in the
lead (#1) unit;
• the programmed values do not match, check the values
programmed in each unit;
– Example: Display format different from one unit to the
other.
– Example: System of 4 units, but only 2 detected or
connected.
• programmed position of units incorrect.
– Lead unit (#1) not programmed.
– 2 or more units are programmed with the same address.
10.3.2 NXT2 controller
• Number of NXT2 controllers detected does not match number
of tanks in Master Programming;
– Check valve settings and push to other valves, and check
wiring.
Ref. MKT-IM-010 / F - 16.01.2023
Cause
Installer manual Fleck 3150 NXT/NXT2 - Troubleshooting
Solution
Program correctly the units using only once per
position number.
There was a power failure.
Check and program all units in the system with
the same units of measure.
Check to make sure that system number and
number of units correspond.
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