Operating instructions

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Using the Heater Manually with the Vehicle Accesory “On”
(Optional wire on pin 10 is connected to the ignition lock)
Push buton.
The symbol will appear in the display next to the time of day.
The time of day will remain displayed during ignition on operation.
The heater will function continually as long as the vehicle ignition
is “On”.
When the vehicle ignition is turned “Off” the heater will continue
to operate for an additional 15 minutes.
The run time can be altered by pressing the or buttons.
The heater can be turned off by pressing button.
Set Preheat Times into Memory
Press b
utton until the desired memory location is shown in
the display (Three memory locations are available).
Using the or buttons set the desired preheat start time
of day.
When the time stops flashing the time of day is set.
Using the or buttons set the desired day of the week.
When the day of the week stops flashing the day is set.
To Use Preset Start Times
Press the button until the desired memory location appears
in the displa
y.
The heater will start at the day and time displayed.
The display will go off in 15 seconds. The memory location
number will stay displayed (1, 2 or 3).
Note: When preset is chosen this symbol will flash red.
To Turn Heater “Off” - All Modes
Press the button once.
The heat signal to the heater will be tur
ned “Off”.
The heater will do a normal cooldown and turn itself “Off”.
Wiring Connections at Connector
Terminal 1 Power from vehicle dash lights.
Terminal 2 Heater switch wire - Yellow wire.
Terminal 4 Connect to vehicle ground.
Terminal 6 Temperature setting “+” (air only).
Terminal 8 Heater diagnostic lead - blue wire.
Terminal 9 Temperature setting “-” (air only).
Terminal 10 To vehicle “ACC” accessory for
continuous overnight use, and for
unlocking ECU.
Terminal 11 Positive power from heater - red “+”.
Terminal 12 Ground lead from heater - brown “-”.
Terminal 3,5,7 Left blank, not required.
Control Unit Locking
The control unit may becomed locked due to one of the follow-
ing conditions:
1.
Overheat – If the heater overheats three times in succes-
sion, fault message F15 is displayed and the
control unit is locked.
2. Too many failed start attempts - If the heater performs
many start attempts in succession (i.e. Fault 52), fault
messsage F50 is displayed and the control unit is locked.
Unloc
king Control Units and Erasing Fault Memory
1. Turn on the vehicle ignition to activate timer display.
2.
Press the key. The current fault code (i.e. F15 or F50) is
now displayed.
3. Press the key and hold it down and press the key
within two seconds. The timer is now in the retrieval mode.
4. Turn off the ignition.
5. Press the key and hold it down and press the key
within two seconds and hold it down.
6. While holding down keys, turn ignition on and wait
until the following display appears:
7. Press the key to turn the heater off.
8. Press the key to turn the heater on.
9. Repeat step three. The following display appears:
10.The control unit lock is cancelled after three seconds
and the heater starts.
Retreaving the Stored Fault Codes
1. Press the key. The heater is switched on.
2.
Press the key and hold it down and press the key
within two seconds. The current fault code is now displayed
(Example: AF:64).
3. The stored fault codes (maximum of 5) can now be retrieved
using the arrow keys and (Example: F1:64).
Note: · This timer is equipped to display fault code numbers if
the heater should shut down due to an operating fault.
The fault code will show in the timer display next to the
flashing heat wave symbol. This applies to all current
model heaters when the blue diagnostic wire is con-
nected.
· If the timer is purchased without the harness kit, the
f
ollowing heaters will need a load relay intalled (D8Lc,
D7W, D12W, D24W and D30W), These heaters carry a
load on the switch wire. (i.e. fuel metering pump or noid
sole valve).
· An outside temperature sensor is available as an option.
Note: The electrical connection for the ignition / accessory
wire to the timer terminal #10 must be in place.
Note: Consult the Troubleshooting and Repair manuals for
code definition and corrective action. If the heater is
not being operated using the 7-day timer, fault code
retrieval can be obtained using the “Fault Code
Retrieval Device”, part number: 20 2900 70 50 20.