Set Appliance State:

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

Observation:


Click HERE for guidance on how to check/adjust Diagnostic code D.093.
Alternatively refer to Adapt for further guidance.
Once you navigate to D.093, the Device Specific Number (DSN)
will be displayed underneath the Diagnostic code.
Confirm the boilers DSN number is set correctly (refer to the table above), if the DSN number is set for the wrong appliance this will reduce the heat input for DHW and can cause poor DHW temperature rise.
Is the Device Specific Number (DSN) set up correctly ?