Code
Text display
Possible cause/check
E04.21
Deviation in burner sensor 1 and burner sensor 2
detected
-
E04.23
Gas Valve Control internal locking
-
E04.24
No gas family found during gas family detection mode
-
12.2 Error memory
The boiler control unit has an error memory. It stores the last 32 errors that
have occurred.
12 Troubleshooting
72
7625116 - v.04 - 17012017