ERROR CODE: F40
ERROR TYPE: High Water Pressure Fault
PROBABLE CAUSE: It occurs when the water pressure sensor detects a relatively high water pressure (3,3 ±0,3 bar) for your device.
SOLUTION:
1- Check the water pressure in heater installation of your boiler.
2- Turn off the device and restart it.
3- If the error is still present (or persists) after reset, notify gas safe engineer.
Updated on 9 January 2024, Tuesday