Operating Anomalies With Electric Reset - Immergas VICTRIX 50 Instruction Booklet And Warning

3.5 Operating anomalies with electric reset.

Code
b 18 System delivery temperature above 95 °C
b 19 System return temperature above 95 °C
b 24 t between delivery and return above 10 °C after 180 sec.
∆
b 25 System delivery temperature increase too fast
b 26 Lack of water
b 28 Fan fault (no Hall signal)
b 29 Fan fault
b 30 Temperature difference between system delivery and return more
than 40 °C
b 33 Domestic circuit sensor fault (short-circuited)
b 38 Domestic circuit sensor fault (open)
b 65 Fan start wait
P 3 0
E.g. if the display shows these values it means
that the appliance has a temperature difference
( t) between system delivery and return of more
∆
than 40 °C.
"Blocks" are temporary and the boiler automati-
cally resets when the anomaly disappears.
N.B.: maintenance must be performed by a qualified
technician (e.g. Immergas Technical Assistance Service).
- Smell of gas. Caused by leakage from gas circuit pipes.
Check tightness of gas supply circuit.
- Irregular combustion or noisiness. is may be caused by
a dirty burner, incorrect combustion parameters, intake-
exhaust terminal not correctly installed. Clean the above
components and ensure correct installation of the terminal,
check correct setting of the gas valve (Off-Set setting) and
correct percentage of CO
- Trap clogged. is may be caused by dirt or combustion
products inside. Check, by means of the condensate drain
cap, that there are no residuals of material blocking the
flow of condensate.
38
Description
in fumes.
2
Check circulation of water in system
Check circulation of water in system
Check main exchanger
Check circulation of water in system
Check correct water pressure inside
system
Check fan
Check fan
Check circulation of water in system
Check domestic circuit sensor
Check domestic circuit sensor
Check fume circuit
- Exchanger blocked. is may be caused by the trap being
blocked. Check, by means of the condensate drain cap,
that there are no residuals of material blocking the flow
of condensate.
- Noise due to air in the system. Check opening of the special
air valve cap (see fig. page 20). Ensure that system pressure
and expansion tank precharge are within the set limits.
N.B.: e boiler must be shut down in case of boiler main-
tenance involving the closing of one or both system on/off
cocks (detail 34 page 25).
Cure