FIAT DUCATO 2009 3.G Repair Manual

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Fan speed adjusting
buttons (H)
Press button Hends to
increase or to decrease the fan speed and
therefore the amount of air admitted into
the passenger compartment, the system
will however keep the required
temperature.
The fan speed is shown by the lit bars on
the display
❒Max fan speed = all bars lit
❒Min fan speed = one bar lit.
The fan can be cut off only if the climate
control compressor has been switched off
pressing button F-fig. 51.
IMPORTANT To restore automatic fan
speed control after a manual adjustment,
press button AUTO.
IMPORTANT At high vehicle speed, the
dynamic effect increases the air flow inside
the passenger compartment that will not
be directly correlated with the lit fan
speed bars.AUTO button (A)
(automatic
operation)
Pressing the AUTO
button the system automatically adjusts
the amount and distribution of the air
admitted to the passenger compartment,
cancelling all the previous manual
adjustments.
This condition is indicated by the message
FULL AUTO on the front display.
Manual operation of at least one automatic
function (air recirculation, air distribution,
fan speed or climate control compressor off)
will cause FULL message going off the dis-
play. This means that automatic control is
not complete (except temperature control
which is always automatic).

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IMPORTANT If it is no longer possible to
reach and maintain the required passen-
ger compartment temperature due to
manual function operation, the set tem-
perature flashes to indicate that the sys-
tem is experiencing difficulties and the AU-
TO message then goes off.
To restore system automatic control at
any time, after one or more manual ad-
justments, press button AUTO.Air recirculation
on/off button (G)
Air recirculation works
according to the following operating
logics:
❒forced switching on (inside air recir-
culation always on), indicated by the
turning on of the led on the button G
and by symbol íon the display;
❒forced switching off (air recirculation
always off with air inlet from the out-
side), indicated by the turning off of
the led on the button and by symbol
êon the display.
The above operating conditions are ob-
tained by pressing in sequence the air re-
circulation button G.
IMPORTANT The inside air recirculation
system makes it possible to reach the re-
quired heating or cooling conditions faster.

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It is however inadvisable to use it on
rainy/cold days as it would considerably
increase the possibility of the windows
misting inside, especially if the climate con-
trol system is off.
With low outdoor temperatures, recir-
culation is turned off (with air intake from
outside) to prevent possible misting.
It is inadvisable to use the inside air re-
circulation function with low outside tem-
perature as windows may mist over quick-
ly.Climate control
compressor on/off
button (F)
Press pushbutton √to
turn off the climate control system
compressor if it was on previously and
the logo on the display is turned off.
When the pushbutton is pressed with
the led off, control of compressor
activation is restored to automatic
control by the system. This condition is
indicated by the logo lighting up on the
display.
When turning the compressor off, the sys-
tem will deactivate air recirculation to pre-
vent window misting up. Although the sys-
tem is able to keep the required tempera-
ture, the wording FULL will disappear from
the display. If the system is no longer able
to keep the required temperature, tem-
perature figures will flash and the wording
AUTO will disappear from the display.IMPORTANT With the climate control
compressor off, it is not possible to admit
air to the passenger compartment with a
temperature below the outside tempera-
ture; moreover, under certain environ-
mental conditions, windows could mist up
fastly since air is not dehumidified.
The switching off of the climate control
compressor remains in storage even when
the engine has been stopped.
To restore automatic control for switch-
ing on the climate control compressor,
press again button √(in this event the sys-
tem will just work as heater) or press but-
ton AUTO.

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With the compressor off, if the outside
temperature is higher than set, the system
is not able to meet the request. This is in-
dicated by the temperature setting flash-
ing, after which the AUTO message is
turned off.
With the compressor disabled, it is pos-
sible to zero the fan speed manually (no
bars displayed).
With the compressor enabled and the en-
gine started, the fan speed may only drop
to minimum (one bar displayed).Fast window
demisting/defrosting
button (D)
Press this button: the
climate control system will automatically
switch on all the functions required for
fast windscreen and front side window
demisting/defrosting, that is:
❒switches on climate control compres-
sor when climatic conditions are suit-
able;
❒air recirculation off;
❒maximum air temperature HI on both
areas;
❒activates proper fan speed according
to engine coolant temperature to lim-
it the flow into the passenger com-
partment of air not warm enough to
demist the windows;
❒directs air flow to windscreen and
front side windows vents;
❒turns heated rear window on
IMPORTANT Fast demisting/defrosting
function stays on for about 3 minutes,
since engine coolant temperature reach-
es a temperature suitable for fast window
demisting.
When the max. demisting/defrosting func-
tion is on, the button led and the heated
rear window button led will turn on; FULL
AUTO wording on the display will turn
off.

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When the max. demisting/defrosting func-
tion is on, the only manual operations pos-
sible are manual adjustment of the fan
speed and switching heated rear window
off.
To restore the operating conditions of the
system prior to function activation, just
press one of the following buttons: button
B, air recirculation button G, compressor
button For button AUTO A.
fig. 52F0N0185m
Switching the
system OFF (E)
Press button Eto turn
the system off, also the display will turn
off.
When turned off the system conditions are
the following:
❒display off;
❒air recirculation on, the passenger's
compartment is isolated from the out-
side (recirulation led on);
❒conditioner compressor off;
❒fan off.
IMPORTANT to guarantee fast demist-
ing/defrosting if the additional heater/ con-
ditioner (under the rear seat for Panora-
ma and Combi versions) is on, turn it off
by pressing button F(led off) located on
the control panel fig. 52.

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SUPPLEMENTARY
HEATER
(where provided)
Certain versions are also fitted a supple-
mentary heater set under the driver’s seat.
To activate the supplementary heater fan
press button Fset on the control panel
fig. 53.
fig. 53F0N0185m
Press AUTO to turn the system in auto-
matic mode.

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SELF-STANDING
SUPPLEMENTARY
HEATER
(where provided)
Fiat Ducato can be equipped, upon re-
quest, with two different self-standing
heaters: one is totally automatic whereas
the other is programmable.
AUTOMATIC VERSION
The supplementary heater will activate au-
tomatically with engine turned on and
proper engine coolant and outside tem-
perature conditions. Deactivation is always
automatic.
IMPORTANT During periods of low tem-
perature when the device is activated,
check that the fuel level is higher than the
reserve. Otherwise the device could lock
and require the assistance of the Fiat
Dealership.PROGRAMMABLE VERSION
The supplementary heater is totally inde-
pendent from the engine and can be used
to:
❒heat the passenger compartment
when the engine is off;
❒defrost the windows;
❒heat the engine coolant and conse-
quently the engine before starting.The system consists of:
❒diesel burner to heat coolant with ex-
haust fume muffler;
❒metering pump connected to the ve-
hicle fuel pipes to feed the burner;
❒heat exchanger connected to the en-
gine cooling system pipes;
The heater burns fuel in the
same way as the engine,
though, of course, to a lesser degree
and therefore to avoid intoxication
and suffocation, never use the sup-
plementary heater in closed areas,
garages or workshops not equipped
with specific exhaust evacuation de-
vices even for short periods of time.
WARNING

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In cold weather, the supplementary heater
warms and circulates constant tempera-
ture fluid in the engine cooling system for
the time required to ensure optimal en-
gine ignition and passenger compartment
temperature conditions.
The heater can be started automatically
(programmed by means of the digital
timer) or manually by pressing the “heat
now” button on the timer.
When the heater is turned on (automat-
ically or manually), the electronic control
unit operates the fluid circulation pump
and safely ignites the burner according to
preset and controlled modes.
❒control unit connected to the
heater/ventilation unit for automatic
operation;
❒electronic control unit to check and
adjusted the integrated heater burner;
❒digital timer A-fig. 54to start the
heater manually or to program staring
time.The electronic control unit also controls
the circulation pump delivery in order to
reduce initial heating time. When the sys-
tem is operating, the control unit operates
the heater unit fan to the second speed.
Thermal power is adjusted automatically
by the control unit according to the en-
gine coolant temperature.
fig. 54F0N0150m

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IMPORTANT The heater is equipped with
a thermal switch which cuts off the heater
in the event of overheating caused by low
or leaking coolant. In this case, press the
program selection button to start the
heater again after repairing the cooling sys-
tem fault and/or topping up the fluid.
The heater can turn itself off after engine
ignition or if the flame goes out. In this
case, turn the heater off manually and at-
tempt to turn it back on again. If you can-
not turn the heater on, contact a Fiat
Dealership.Turning the heater on
If an automatic climate control system is
fitted, the control unit sets air tempera-
ture and distribution when the parking
heater is turned on.
When a manual heater/climate control
system is fitted, to achieve peak heater
performance, check that the passenger
compartment heater/ventilation unit air
temperature knob is in “warm air” posi-
tion.
For preferential passenger compartment
preheating, turn the air distribution knob
to position
©.
For preferential windscreen demisting, set
the air distribution knob to position
-.
To obtain both functions, set the air dis-
tribution knob to position
®.Digital timer fig. 55
1) Heater cycle warning light
2) Display light
3) Clock pre-set recall number
4) Clock button
5) Hour “forward” button
6) Program selection button
7) Hour “back” button
8) Heat now button
9) Display/adjust time warning light
fig. 55F0N0151m

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Programmed heating fig. 58
Heater ignition can be delayed from 1
minute to 24 hours. Three different times
can be programmed but only one will be
activated for each pre-warming cycle.
To program starting time:
❒press button 6: either symbol 10 or
the previously programmed time and
number 3 (corresponding to the pre-
set function recalled) will light up for
10 seconds; Setting the clock
❒Press button 4: display and warning
light 9-fig. 57will light up.
❒Within 10 seconds, press button 5or
7to select the correct time.
When the display is turned off, the cur-
rent time will be stored.
Keeping button 5or 7pressed will fast
forward or backward the clock.
Reading the clock fig. 48
To read the clock, press button 4: current
time will be displayed for approximately
10 seconds. Warning light 9will turn on. “Heat now” function fig. 56
To turn the heater on manually, press
timer button 8. The display and warning
light 1will stay on while the heater is in
use.
Programming the heater
Before programming the heater, set the
clock.
fig. 56F0N0152mfig. 57F0N0153mfig. 58F0N0154m