Cotech EMT448 Manual

Engine Block Heater Timer with
Temperature Sensor
Art.no 36-6047 Model EMT448
Please read the entire instruction manual before using the product and then
save it for future reference. We reserve the right for any errors in text or images
and any necessary changes made to technical data. In the event of technical
problems or other queries, please contact our Customer Services.

Safety

Never try to dismantle, repair or modify the product in any way.

Buttons and functions

1
2
3
4
1. Clock
2. Departure time
3. [ SET ] departure time setting
4. [ OK ] clock setting, confirm
5. Time elapsed since the heater was switched on
6. [ −1 ] Setting
7. [ RST ] Reset all settings (the departure time resets to a default setting of 07:00)
8. [ +1 ] Setting
GREAT BRITAIN • CUSTOMER SERVICE tel. 020 8247 9300 e-mail customerservice@clasohlson.co.uk internet www.clasohlson.co.uk

Operating instructions

Note: The timer has a built-in battery which is charged when the timer is
plugged into a wall socket (charging time is 2 hours). It is therefore possible to
make settings (if the battery is charged) even when the timer is not plugged into
the wall socket. The display backlight cannot be lit when the timer is unplugged
from the wall socket.

Setting the clock

1. Hold in [ OK ] until the hours flash.
2. Press or hold in [ +1 ] or [ −1 ] to set the hours.
3. Press [ OK ] – the minutes display will flash.
4. Press or hold in [ +1 ] or [ −1 ] to set the minutes.
5. Press [ OK ] to confirm and exit the clock set mode.

Setting the departure time

1. Press [ SET ]. The hours will then begin to flash.
2. Press or hold in [ +1 ] or [ −1 ] to set the hours.
3. Press [ OK ] – the minutes display will flash.
4. Press or hold in [ +1 ] or [ −1 ] to set the minutes.
5. Press [ OK ] to confirm and exit the settings mode.

Display backlight

Note: The display backlight can only be lit when the timer is plugged into
a wall socket.
• The backlight will come on for 10 seconds whenever any of the buttons
is pressed.
5
• Hold in [ SET ] for 3 seconds to switch the backlight to "always on" mode.
• Hold in [ SET ] again to switch off the backlight and set it to "on for
10 seconds when button pushed" mode. Note: After you have held in
the button for 3 seconds to change the backlight from "always on" mode,
the backlight will shine for 10 seconds before going out.
6

Preset programmes

7
If you have for and the temperature
example set your where the timer is
departure time to ... located is ...
8
07:00 5 °C ± 2 °C
07:00 0 °C ± 2 °C
07:00 −5 °C ± 2 °C
07:00 −10 °C ± 2 °C
07:00 −15 °C ± 2 °C or lower
Note:
Time elapsed since the heater has been switched on only
shows when the heater is switched on.
• The timer will not switch the heater on if
the temperature where the timer is located is above
5 °C. If the temperature rises to above 7 °C when
the heater is on, the timer will switch the heater off.
• The heater will stay on 30 minutes past the set
departure time. Example: It is −10 °C and the timer
switches the heater on 120 min before the set
departure time (see above). During these two hours,
the temperature drops to −15 °C, the timer does not
react to the change in temperature but operates in
accordance with the initial temperature detection of
−10 °C.
• It takes about 45 minutes for the timer to adapt to
a new temperature such as when it is taken out into
the cold from a warm indoor environment.
• Always make sure to insert the timer into the wall
socket so it is orientated as shown in the picture.

Care and maintenance

• Clean the timer by wiping it with a dry cloth.
• The timer should be unplugged from the wall socket if it is not to be used for
a long time.

Troubleshooting guide

The timer • Check the clock and timer settings and adjust if necessary.
does • Try plugging the engine/car heater directly into the wall
not work. socket without the timer, to see if everything works.
• Make sure that the cable between the timer and the car is
intact and properly plugged into both the timer and car.
• Check that the car heater is switched on, that the cable is
intact and properly plugged into the outlet in the passenger
compartment.
• Try plugging the car heater into another electrical outlet to
make sure that it works.
the timer will switch
• Is the wall socket that the timer is plugged into live?
the heater on at

Disposal

30 min before departure
This product should be disposed of in accordance with local regulations.
If you are unsure how to proceed, contact your local council.
60 min before departure
90 min before departure

Specifications

120 min before departure Power supply
Load capacity
180 min before departure
Operating temperature
IP rating
230 V AC, 50/60 Hz
3680 W, 16 A
−20 to 45 °C
IP44