Immergas VICTRIX 75 - Temporary Errors and Auto-Reset

35
STV75 ed 01/08 VICTRIX 75
Code Description Remedy
b 18 System ow temperature higher than 92°C
Check the circulation of water in the
system
b 19 System return temperature higher than 87 °C
Check the circulation of water in the
system
b 24 Flow and return probes inverted Check probes position
b 25 System ow temperature increases too quickly
Check the circulation of water in the
system
b 26 No water
Check the correct pressure of the water
inside the system
Bring the water pressure in the system to
value between 1 and 1.2 bar
Check for leakage in the circuit
b 28 Fan failure (no Hall signal)
Check the fan
Check "F3" fuse
Check circuit board
b 29 Fan failure
Check the fan
Check "F3" fuse
Check circuit board
b 30
Dierence between system ow and return temperature higher
than 40 °C
Check the circulation of water in the
system
b 33 Domestic hot water probe failure (short circuited) Check / replace DHW probe
b 38 Domestic hot water probe failure (open) Check / replace DHW probe
b 65 Waiting for the fan to start (insucient air ow) Check fan function
b 118
Loss of ionising current during burner ignition (after 3 attempts,
fault becomes error "02" ignition inhibition)
Check gas and electricity supplies
Check gas supply pressure
Indications and malfunctions with electrical rearming.
e board features a display that shows malfunctions or shut-
downs by means of error codes.
e error codes preceded by the letter “b” are temporary shut-
downs (volatile) so, if the conditions that caused the shutdown
stop, the boiler rearms itself automatically and starts working
normally again.
19 System return temperature too high (over 87 °C)
Check the circulation of water in the
System
25 System ow temperature increase too rapid
Check water ow in system
Check primary heat exchanger
30 Dierence between ow and return temperatures too high Check water ow in system
31 System ow probe failure (short circuited) Change the system ow probe
32 System return probe failure (short circuited) Change the system return probe
36 System ow probe failure (open) Change the system ow probe
37 System return probe failure (open) Change the system return probe
114 Invalid cascade address
Check address set on board (See cascade
and zone adjuster helper board)
Technical Documentation
Technical Documentation