Find clear, practical guides for Brand appliance faults, error codes, and breakdowns. Each article helps you understand the problem fast and take the right steps to fix it at home.

How to eliminate the error L38 in boiler Dietrich? Error: L38 Description: Def.com PCU – Interruption of communication between electronic cards PCU and Scu Cause: Solution: Bad connection SCU...

How to eliminate the error L37 in boiler Dietrich? Error: L37 Description: Def.com.su – interruption of communication with the electronic card its Cause: Solution: Bad connection – Notify the...

How to eliminate the error L36 in boiler Dietrich? Error: L36 Description: Def.ionization – The flame has disappeared more than 5 times in 24 hours while the burner...

How to eliminate the error L35 in boiler Dietrich? Error: L35 Description: Def.ret> Cald – Inverted Drive and Return Cause: Solution: Bad connection probe failure – Notify the professional...

How to eliminate the error L34 in boiler Dietrich? Error: L34 Description: Ventl defect. – The fan does not turn at the correct speed Cause: Solution: Bad defective fan...

How to eliminate the error L251 in boiler Dietrich? Error: L251 Description: Def.Manometer – Water pressure collector defect Cause: Solution: Wiring problem The pressure gauge is defective defect probe...

How to eliminate the error L250 in boiler Dietrich? Error: L250 Description: Def. Water Faze – Water pressure is too low Cause: Solution: Badly purged hydraulic circuit Water leakage...

How to eliminate the error L17 in boiler Dietrich? Error: L17 Description: Def. GAS VALVULA – PROBLEM IN THE ELECTRONIC CARDS YOUR Cause: Solution: Bad connection electronic card its...

How to eliminate the error L16 in boiler Dietrich? Error: L16 Description: Parasite call – detection of a parasite flame Cause: Solution: Presence of an ionization current when there...

How to eliminate the error L14 in boiler Dietrich? Error: L14 Description: Defect In. – 5 burner boot failures Cause: Solution: Absence of ignition arc 4 Notify the professional...

How to eliminate the error L12 in boiler Dietrich? Error: L12 Description: TSEG. ABTE – Maximum Boiler Temperature overcome (maximum stb thermostat) Cause: Solution: Bad connection of probe failure...

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...