Boiler shows E19, may indicate parameter or configuration error after PCB replacement

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Incorrect PCB configuration, Wrong boiler model parameters, Corrupted EEPROM, Installer settings error

Safety first: Isolate power before accessing the PCB.

Check recent work: If the PCB or display was recently replaced, E19 likely indicates incorrect configuration.
Engineer configuration: Using the Sime installer menu, the engineer must set the correct boiler type, gas type, and system parameters according to the data plate.
Reset to defaults: If allowed by Sime, restore factory settings and re-enter parameters.
Replace PCB if corrupt: If configuration cannot be saved or is repeatedly lost, the PCB may be defective.

Hard 4/5

Main Control PCB

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