Merax ED40 Allgemeines Benutzerhandbuch Seite 16

4. Set the low voltage protec�on func�on
This product has the func�on of low voltage protec�on. When it detects that the ba�ery voltage is
lower than the set value, it will automa�cally turn off the compressor to prevent over discharge from
damaging the ba�ery or causing the car unable to start normally. At this �me, the screen will display
"E1" code prompt. If the voltage returns to normal, the refrigerator will automa�cally enter the
working state 1 minute later. The factory default is "Medium". If you need to change it, please follow
the steps below:
a: Unlock control panel.
b: Long press the "set" bu�on for 3 seconds, release it a�er hearing a �ck tone, and then press the
"set" bu�on one �me. At this �me, one of the ba�ery protec�on level icons "L, M, H" on the display
will flash, and then press the "up / down" bu�on to change the se�ng.
Refer to the table below for specific values:
Ba�ery
Protec�on
Low grade - L
Medium - M
High grade-H
WARNING!
 If your refrigerator enters the ba�ery protec�on in advance, it may be because your power
supply voltage is insufficient and the low voltage protec�on value is set too high, or your DC
power supply wiring is improper and cannot provide enough current. Check whether the power
supply wiring is appropriate, and consider appropriately lowering the ba�ery protec�on gear.
 In order not to affect the normal start of the car, it is recommended to set the protec�on level
at "H" when using the refrigerator on the car.
5. Refrigerator temperature se�ng
Press " " bu�on to adjust the refrigerator temperature (The temperature value displayed
on the display screen is the current set value; the temperature change 1 degree for each press). If
you hold down it, you can quickly adjust to the required temperature. if the set temperature doesn't
12 V 12 V
Turn off Turn on
8.5 V 10.9 V
10.1 V 11.4 V
11.1 V 12.4 V
24 V 24 V
Turn off Turn on
21.3 V 22.7 V
22.3 V 23.7 V
24.3 V 25.7 V
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