Atlantic water heater shows E20 and does not respond to button presses.

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

Damaged touch panel, moisture behind front cover, disconnected keypad ribbon cable, failed user interface PCB

Safety: Turn off power before removing the front panel.

Remove the decorative front cover to access the keypad or touch interface board.
Check for signs of moisture or condensation; dry the area thoroughly and correct any leaks from above.
Inspect the ribbon cable between the keypad and the display/control board; reseat both ends.
If certain buttons do not respond, the keypad membrane or touch sensors may be damaged. Replace the complete user interface assembly with the correct Atlantic spare.
After replacement, restore power and test all buttons and functions.

Medium 3/5

User Interface / Keypad Assembly

Check Price on Amazon

We may earn a commission from links on this page.