Dometic BUTTNER MT LB 40 Instructions De Montage page 24

EN MT LB
1. Turn off the engine.
2. Use a voltmeter to check the voltage of the house battery .
3. Check if the DIP switch settings for the battery requirements and for the alternator type (traditional or smart) are
correct.
4. Turn the switch to position
5. Turn on the engine.
The LED lights up red or orange to indicate that the charging of the battery is in progress.
6. Check the voltage of the house battery with the voltmeter and compare it to the previous measurement.
The voltage must be higher than before.
7. After 2 min verify the maximum current data with a clamp meter.
This phase lasts a few seconds if the house battery is completely charged.
8. Check the voltage of the starting battery at the battery poles with a voltmeter and compare it with the voltage
between the charger's positive terminal and negative terminal.
The difference between the two connections may be max. 0.7 V. If the voltage difference is higher than 0.7 V, use
a power cable with a larger cross-section for the connection to positive pole of starting battery (INPUT) or improve
the ground connection (GND).
11 Cleaning
The device is maintenance-free.
Occasionally clean the product with a damp cloth.
12 Troubleshooting
Problem
The charger does not work. The LEDs
do not light up.
The LED flashes red and a beep
sounds.
13 Disposal
Recycling packaging material: Place the packaging material in the appropriate recycling waste bins wher-
ever possible.
24
ON
.
Possible cause
Insulation faults, breaks or loose con-
nections at the live cables.
Short circuit has been generated.
The device fuse is defective.
Suggested remedy
Check live cables for insulation
faults, breaks or loose connec-
tions.
If you cannot find an error, con-
tact an authorized service agent.
The device fuse must be re-
placed by an authorized service
agent after it has been triggered
by excess current.
The device fuse must be re-
placed by an authorized service
agent after it has been triggered
by excess current.