English
Fault
The heater stops
burning. The reset
button is lit.
The heater produces
smoke.
20
20
Cause
6
The fuel system has air
present when starting.
7
The fuel filter is blocked. Clean or replace the filter.
8
The air inlet of the
burner has an incorrect
adjustment.
9
The magnetic valve
does not open.
10
The pump pressure is
not correct.
11
The pump coupling is
defective.
12
The suction line or main
filter has an air leak.
13
The protection grill for
the air intake is dirty or
blocked.
14
The fresh air supply is
not sufficient.
15
The photocell dirty.
16
The heat exchanger is
blocked.
17
The overheating ther-
mostat is activated or
defective.
18
The nozzle is blocked or
worn.
19
The suction line or main
filter has an air leak.
40.020.005 - rev. 07 - 2011
40.019.005 rev 00 - 2013
Solution
Press reset switch. Repeat
the start procedure if neces-
sary.
Adjust the air inlet, see fig. 6 Dealer
Check the electrical connec-
tion. A "click" should be
heard when you press the
switch to "O" and "I".
Clean or replace the mag-
netic valve.
Adjust the pump pressure
with a manometer.
Replace the pump coupling. Dealer
Check and replace if neces-
sary.
Clean the grill.
Open a door or a window.
Clean the photocell, see
fig. 5.
Clean the heat exchanger.
Trace cause. Reset, or if
necessary replace the ther-
mostat.
See faults 1 and 9.
Replace the nozzle.
Check and replace if neces-
sary.
See faults 8, 10, 13 and 14.
Action
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ITA 45/75 ROBUST
ITA/ITAS