Nibe VEDEX 4000 - Alarm Code Reference; Alarm Codes and Descriptions; Main Alarm Causes

14 VEDEX 4000
Main alarms
Code Brief description Possible cause
1 Short of the boiler sensor Sensor failure. Sensor cable broken.
2 Boiler overheating Boiler temp has exceeded the max value.
3 Return to boiler sensor damage Sensor failure. Sensor cable broken.
4 Burner/feeder sensor damage Sensor failure. Sensor cable broken.
5 STB -
20 Room sensor 1 damage Sensor failure. Sensor cable broken.
21 Room sensor 2 damage Sensor failure. Sensor cable broken.
22 Room sensor 3 damage Sensor failure. Sensor cable broken.
23 Room sensor 4 damage Sensor failure. Sensor cable broken.
24 CH1 temp. sensor damage Sensor failure. Sensor cable broken.
25 CH2 temp. sensor damage Sensor failure. Sensor cable broken.
26 CH3 temp. sensor damage Sensor failure. Sensor cable broken.
27 CH4 temp. sensor damage Sensor failure. Sensor cable broken.
30 Hot water sensor damage Sensor failure. Sensor cable broken.
31 Bu󰀨er top sensor damage Sensor failure. Sensor cable broken.
32 Bu󰀨er bottom sensor damage Sensor failure. Sensor cable broken.
40 Solar sensor damage Sensor failure. Sensor cable broken.
41 Solar tank sensor damage Sensor failure. Sensor cable broken.
42 Return to solar sensor damage Sensor failure. Sensor cable broken.
43 Solar T4 sensor damage Sensor failure. Sensor cable broken.
44 Solar T3 sensor damage Sensor failure. Sensor cable broken.
45 Solar T2 sensor damage Sensor failure. Sensor cable broken.
46 Solar T1 sensor damage Sensor failure. Sensor cable broken.
50 Fuel reserve Fuel level reached reserve.
51 Fuel tank empty Fuel have runned out.
100 Communication with the module 0 Problem with CAN bus or power supply.
101 Communication with the module 1 Problem with CAN bus or power supply.
102 Communication with the module 2 Problem with CAN bus or power supply.
103 Communication with the module 3 Problem with CAN bus or power supply.
104 Communication with the module 4 Problem with CAN bus or power supply.
105 Communication with the module 5 Problem with CAN bus or power supply.
106 Communication with the module 6 Problem with CAN bus or power supply.
107 Communication with the module 7 Problem with CAN bus or power supply.
110 Communication with the module
BIG
Problem with BIG bus or power supply. Cable CAN not connected
Alarm codes