Boiler displays E16 and will not start

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

Wrong boiler type selected in installer menu, Corrupted PCB settings, Incompatible control connected, Recent PCB replacement not configured

Safety first: Only trained personnel should access installer-level menus.

Power cycle: Turn the boiler off and on at the fused spur to see if the error clears.
Check for recent work: If a PCB or control was recently replaced, the installer may need to reconfigure boiler parameters according to the Remeha installation manual.
Engineer tasks: Enter installer mode, verify boiler model selection, reset parameters to factory defaults if appropriate, and reprogram settings. If configuration cannot be saved, the PCB may need replacement.

Hard 4/5

Main Control PCB

Check Price on Amazon

We may earn a commission from links on this page.