Troubleshoot error code “L11” in Dietrich boiler

How to eliminate the error L1 in boiler Dietrich?

  • Error: L11
  • Description: DT.RET -SAL> MAX – Too much difference between driving and return temperatures
  • Cause: 
  • Solution: Bad connection of probe failure 4 Notify the professional to take care of the maintenance of the apparatus

More tips

Dietrich as soon as possible fails to solve the error of the Dietrich boiler, we recommend that you contact the technical or specialist service in Dietrich boilers as soon as possible.

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