INOX TECH 45 H
22
EN
cod. 3541R890RU - Rev. 00 - 04/2019
Proceed in reverse order to refit the front panel. Make sure it is correctly hooked to the
upper fastenings and is correctly positioned at the sides. When tightened, the head of
screw "A" must not be below the lower fold (see fig. 26).
fig. 26 - Correct position of front panel
Periodical check
To ensure proper operation of the unit over time, have qualified personnel carry out a
yearly inspection, providing for the following checks:
•
The control and safety devices (gas valve, flow meter, thermostats, etc.) must func-
tion correctly.
•
The fume exhaust circuit must be perfectly efficient.
•
The sealed chamber must be tight.
•
The air-fume end piece and ducts must be free of obstructions and leaks
•
The burner and exchanger must be clean and free of deposits. For cleaning do not
use chemical products or wire brushes.
•
The electrode must be properly positioned and free of scale.
•
The gas and water systems must be tight.
•
The water pressure in the system when cold must be approx. 1 bar; otherwise bring
it to that value.
•
The circulating pump must not be blocked.
•
The expansion tank must be filled.
•
The gas flow and pressure must match that given in the respective tables.
•
The condensate evacuation system must be efficient with no leakage or obstruc-
tions
•
The trap must be full of water.
•
Check the quality of the water in the system.
4.4 Troubleshooting
Diagnostics
In case of operation faults or problems, the display flashes and the fault identification
code appears.
There are faults that cause permanent shutdown (marked with the letter “
A
”): to restore
operation just press the
reset
button (detail 6 -fig. 1) for 1 second or RESET on the op-
tional remote timer control if installed; if the boiler fails to start, it is necessary to firstly
eliminate the fault.
Faults marked with the letter “
F
” cause temporary shutdowns that are automatically reset
as soon as the value returns within the boiler's normal working range.
Table of faults
Table. 8 - List of faults
Fault
code
Fault
Possible cause
Cure
A01
No burner ignition
No gas
Check the regular gas flow
to the boiler and that the air
has been eliminated from
the pipes
Ignition/detection elec-
trode fault
Check the wiring of the elec-
trode and that it is correctly
positioned and free of any
deposits
Faulty gas valve
Check the gas valve and
replace it if necessary
Insufficient gas supply
pressure
Check the gas supply pres-
sure
Trap blocked
Check the trap and clean it if
necessary
A02
Flame present signal
with burner off
Electrode fault
Check the ionisation elec-
trode wiring
Card fault
Check the card
A03
Overtemperature pro-
tection intervention
Heating sensor dam-
aged
Check the correct position-
ing and operation of the
heating sensor
No water circulation in
the system
Check the circulating pump
Air in the system
Vent the system
A04
Fume extraction duct
safety device interven-
tion
Fault F07 generated 3
times in the last 24
hours
See fault F07
OK
NO
A05
Fan protection acti-
vated
Fault F15 generated
for 1 hour (consecu-
tive)
See fault F15
A06
No flame after ignition
stage (6 times in 4
minutes)
Ionisation electrode
fault
Check the position of the
ionisation electrode and
replace it if necessary
Flame unstable
Check the burner
Gas valve Offset fault
Check the Offset adjust-
ment at minimum power
air/fume ducts
obstructed
Remove the obstruction
from the flue, fume extrac-
tion ducts and air inlet and
terminals
Trap blocked
Check the trap and clean it if
necessary
F07
High fume tempera-
ture
The fume probe
detects an excessive
temperature
Check the exchanger
F10
Delivery sensor 1 fault
Sensor damaged
Check the wiring or replace
the sensor
Wiring shorted
Wiring disconnected
F11
Return sensor fault
Sensor damaged
Check the wiring or replace
the sensor
Wiring shorted
Wiring disconnected
F12
DHW sensor fault
Sensor damaged
Check the wiring or replace
the sensor
Wiring shorted
Wiring disconnected
F13
Fume probe fault
Probe damaged
Check the wiring or replace
the fume probe
Wiring shorted
Wiring disconnected
F14
Delivery sensor 2 fault
Sensor damaged
Check the wiring or replace
the sensor
Wiring shorted
Wiring disconnected
F15
Fan fault
No 230V power supply
Check the 3-pin connector
wiring
Tachometric signal
interrupted
Check the 5-pin connector
wiring
Fan damaged
Check the fan
F34
Supply voltage under
170V
Electric mains trouble
Check the electrical system
F35
Faulty mains fre-
quency
Electric mains trouble
Check the electrical system
F37
Incorrect system
water pressure
Pressure too low
Fill the system
Water pressure switch
damaged or not con-
nected
Check the sensor
F39
External probe fault
Probe damaged or wir-
ing shorted
Check the wiring or replace
the sensor
Probe disconnected
after activating the slid-
ing temperature
Reconnect the external
probe or disable the sliding
temperature
A41
A44
Sensor positioning
Heating sensor
detached from pipe
Check the correct position-
ing and operation of the
heating sensor
A42
Heating sensor fault
Sensor damaged
Replace the sensor
F43
Exchanger protection
intervention.
No system H
2
O circu-
lation
Check the circulating pump
Air in the system
Vent the system
F52
Heating sensor fault
Sensor damaged
Replace the sensor
A61
Controller fault
ABM03E
Controller internal error
ABM03E
Check the earth connection
and replace the controller if
necessary.
A62
No communication
between controller
and gas valve
Controller not con-
nected
Connect the controller to the
gas valve
Valve damaged
Replace the valve
A63
F64
A65
F66
Controller fault
ABM03E
Controller internal error
ABM03E
Check the earth connection
and replace the controller if
necessary.
A23-A24-
F20
F21-A26-
F40-F47
Card parameter fault
Wrong card parameter
setting
Check the card parameter
and modify it if necessary.
Fault
code
Fault
Possible cause
Cure
