14
40.020.945 - rev. 04 - 2011
ITA/ITAS-US
English
The heater stops
burning. The reset
button is lit.
12 The suction line or main
filter has an air leak.
Check and replace if neces-
sary.
User
13 The protection grill for
the air intake is dirty or
blocked.
Clean the grill.
User
14 The fresh air supply is
not sufficient.
Open a door or a window.
User
15 The photocell dirty.
Clean the photocell, see
fig. 5.
User
16 The heat exchanger is
blocked.
Clean the heat exchanger.
User
17 The overheating ther-
mostat is activated or
defective.
Trace cause. Reset, or if
necessary replace the ther-
mostat.
See faults 1 and 9.
User
The heater produces
smoke.
18 The nozzle is blocked or
worn.
Replace the nozzle.
User
19 The suction line or main
filter has an air leak.
Check and replace if neces-
sary.
See faults 8, 10, 13 and 14.
User
The heater produces
white smoke.
20 The fuel system has air. See fault 6.
User
The heater uses too
much fuel.
21 The nozzle is too big or
the wrong type is used.
Replace the nozzle with the
correct one.
User
Check the fuel pipes.
User
See faults 10 and 18.
Heater cannot be
switched off.
22 The magnetic valve
does not close.
Remove the fuel line from
the filter to extinguish the
flame.
User
Clean or replace the mag-
netic valve.
Dealer
The cooling thermo-
stat does not switch
on/off.
23 The automatic cooling
does not work.
Remove the fuel line from
the filter: the flame will extin-
guish.
Dealer
The automatic cooling
does not work / does
not stop.
24 The after cooling ther-
mostat does not switch
on/off.
Cooling is required for 4
minutes. Remove the plug
from the socket.
Dealer
Fault
Cause
Solution
Action
