Baxi PRIME HT 240 Installers And Users Instructions page 26

3) Turn the control knob 7 to display the values of the following parameters in sequence:
A0: domestic hot water output temperature (in °C);
A1: outdoor temperature (in °C);
A2: the value (%) of the PWM signal to the fan (reserved for service engineers);
A3: fan speed (in rpm) x 100 (reserved for service engineers);
A4: central heating water output setpoint temperature (in °C);
A5: flue control NTC temperature;
A6: diagnostic information;
A7: not used;
A8: manufacture information;
A9: manufacture information.
~ 5 seconds
Figure 22
0402_2503
4) To exit "INFO" mode, simply turn control knob 6 fully anti-clockwise (see step 1 above) and repeat step 2.
NOTE: When you exit "INFO" mode, the "A..." message disappears and central heating output temperature is displayed
instead.
26
INSTRUCTIONS FOR THE INSTALLER