Installer Manual Fleck 3900 - NXT - Troubleshooting
98 / 126 Ref. MKT-IM-015 / B - 08.06.2018
10.3. Examples of error displayed
• The unit 2 has been reset;
→ Reprogram the unit.
DETECTED ERROR =
E2 RESET 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.
ERROR DETECTED
NO MESSAGE 3
• there are more units in the system than programmed in the lead
(#1) unit;
ERROR DETECTED
SYSTEM SIZE !
• 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.
ERROR DETECTED
ERROR PROGRAM
• programmed position of units incorrect.
→ Lead unit (#1) not programmed.
→ 2 or more units are programmed with the same address.
ERROR DETECTED
ADDRESS OK
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