Operation; Cleaning; Troubleshooting - NDS Dometic PSB12-40 Installation And Operating Manual

Model
PSB24/12-40
PSB24/12-80

10 Operation

Performing the system operation check
The state of charge (SoC) of the house battery must be at 75 % of the capacity.
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 minutes 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.
DIP switch position (gray)
40 A
80 A
ON
.
Possible cause
Insulation faults, breaks or loose con-
nections at the live cables.
Short circuit has been generated.
30 A
60 A
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
EN
20 A
40 A
21