ATAG Premier Boiler Fault Codes

ATAG Heating Technology

Code Fault
Error 00

poorflame-forming

Error 01

short-circuit of 24 volt circuit

Error 02

no flame-forming

Error 03

temperature in airbox to high

Error 04

temperature in airbox to high

Error 05

fault control unit

Error 12

fuse 24 volt/3AT faulty

Error 19 maximum return temperature exceeded

Error 28

number of revolutions not reported back from fan