Set Appliance State:

Ensure NO demands
WARNING! - Mains voltage is expected during test follow
TOPs P4 live testing procedure
Mains Power On

Observation:

For information on how to access d.93 refer to "Other" in ADAPT.
Once you navigate to d.93, the Device Specific Number (DSN)
will be displayed when you press the "i" button.
Confirm the boilers DSN number is set correctly (refer to the table), if the DSN number is set for the wrong appliance this will reduce the heat input or cause F70 fault to display.
Is the Device Specific Number (DSN) set up correctly ?