Boiler displays E19, may not start or may shut down unexpectedly; sometimes after brownouts or unstable mains.

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

Mains voltage outside specification, Loose power connections, Internal power supply failure on PCB, Faulty external surge protector

Safety: Only qualified persons should work on mains electrical circuits.

Check power source: Ensure the boiler is connected to a dedicated, properly rated circuit. Avoid extension cords.
Inspect isolator and plug: Look for signs of overheating, discoloration, or loose terminals.
Measure voltage (electrician only): Confirm supply voltage is within Atlantic's specified range.
Professional repair: If supply is correct, the internal power supply on the PCB may be faulty and require replacement.

Hard 4/5

Main Control PCB

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