Eberspächer AIRTRONIC D2 Operating Instructions And Service Book - Introduction
Page 11
Airtronic D2 / D4 / D4+
1. Instant Heat ON/OFF key
2. Adjustment Up key
3. Disengaged pre-set symbol
4. Ventilation symbol
5. Temperature ramp.
6. Current Time, Preset Time,
Heating Time, Run Time
and Diagnostics.
7. Day selected indicator boxes.
8. Clock symbol.
9. Heater operation symbol.
10. Preset Programme symbols.
11. Adjustment Down key.
12. Programme key.
13. Set/Programme key.
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Low Heat
High Heat
701 Series Timer / Modulator with Diagnostic Readout Instructions
Introduction
Your Timer/Modulator offers manual and
programmable control along with temperature
adjustment of your heater. When the heater
is switched on by the Timer/Modulator in a
programmed mode it will run for 1 hour or
for the duration time that you have selected
e.g Heater on at 0700, duration time of 1
hour, which means heater will be switched off
automatically at 0800.
Clock Settings
Press and hold key until the symbol
begins to flash. Use the and keys to set
correct time. Press and release the key
and the day box will begin to flash. Use the
and keys to set the correct day. Press and
release the key again to reset the clock to
the start of the minute displayed. This may be
used to coincide with a known time signal.
Please Note: These adjustments are not
possible when the heater is in operation. To
set the heater’s programmable switch on timer,
see “Setting Program Times”.
Switching on the Heater
(Manually)
Press the key and the symbol will appear
on the display. The heater will commence its
startup cycle. The display will change to show
a default of one hour heating countdown
time. This can be extended in increments
of 10 minutes, 30 minutes, 1 hour, 1 hour
30 minutes, 2 hours up to eight hours or to
continuous running operation (shown as C-: --
on display) by repeatedly pressing the key
while the heater is in operation. Current time
will be displayed every 5 seconds.
Switching off the Heater
(Manually)
The heater may be switched off at any time by
pressing the key. The cooling down cycle
will then be initiated.
Adjusting the Temperature
Pressing the and keys will alter the 20
segment temperature ramp shown on the
display. This level may be adjusted at any
time and will remain in the timer memory when
the heater is not in operation.
Diagnostic Readout
With the heater switched on, press and hold
key until the display shows “dAtA”. Release
key and display then shows “AF--” and
alternatively displays the current fault code.
Each press of the key will scroll through the
last 5 previously stored fault codes.
Typical Fault Codes
10 = Over voltage - Check battery charging system.
11 = Under voltage - Check battery voltage.
12 = Overheating - Check air ducts for obstruction.
52 = Safety time exceeded - Check fuel supply.
For other codes consult your local dealer.