ENG - Manual of installation, use and maintenance.
210-0352_libretto_WHC_ATI_eng.docx
34
Jan-19
"Err." appears alternating with the message "F099". The
flashing fault symbol and the
flashing sensor
fault symbol are displayed.
DEVICES
Gas valve: Off.
Fan: if foreseen, a post-purge cycle is performed, then it is
deactivated.
Circulation pump: it performs a post-circulation cycle, if
foreseen, then it turns off.
28.
PROBES FAULTS
These anomalies relate to the temperature probes.
FAULT F030
DESCRIPTION
Interrupted flow sensor.
ACTIVATION / DEACTIVATION CONDITIONS
The anomaly occurs if:
resistive sensor value
≥ 50 kΩ
The anomaly is deactivated if:
resistive sensor value
<50 kΩ
DISPLAYS
"Err." appears alternating with the message "F030". The
flashing fault symbol and the
flashing sensor fault
symbol are displayed.
DEVICES
Gas valve: Off.
Fan: if foreseen, a post-purge cycle is performed, then it is
deactivated.
Circulation pump: it performs a post-circulation cycle, if
foreseen, then it turns off.
FAULT F031
DESCRIPTION
Short-circuited low sensor
ACTIVATION / DEACTIVATION CONDITIONS
The anomaly occurs if:
sensor resistive value
≤ 400 Ω
The anomaly is deactivated if:
sensor resistive value
> 400 Ω
DISPLAYS
"Err." appears alternating with the message "F031". The
flashing fault symbol and the
flashing sensor fault
symbol are displayed.
DEVICES
Gas valve: Off.
Fan: if foreseen, a post-purge cycle is performed, then it is
deactivated.
Circulation pump: it performs a post-circulation cycle, if
foreseen, then it turns off.
FAULT F032
DESCRIPTION
Flow sensor in overheating.
ACTIVATION / DEACTIVATION CONDITIONS
The anomaly occurs if:
Flow sensor temperature > 90 ° C
The anomaly is deactivated if:
Flow probe temperature <89 ° C
DISPLAYS
"Err." appears alternating with the message "F032". The
flashing fault symbol and the
flashing sensor fault
symbol are displayed.
DEVICES
Gas valve: Off.
Fan: If the request is still active, the system brings the fan
to the ignition speed in order to try a new burner ignition.
Circulation pump: Active and at the maximum mechanical
speed.
FAULT F033
DESCRIPTION
Interrupted boiler probe.
ACTIVATION / DEACTIVATION CONDITIONS