Replacing the batteries MD310, MD390, MD450
14
9Replacing the batteries
The batteries must be replaced after no later than one year. The batteries must also
be replaced immediately if “LO-BAT” is shown on the display.
I
➤ Take off the cover (fig. 5 1, page 4).
➤ Remove the four used batteries from the battery compartment (fig. 5 2,
page 4).
➤ Insert four new AA batteries into the battery compartment.
➤ Replace the cover over the interior section.
10 Display messages
NOTE
• Use four high-quality alkaline AA/LR6 batteries (1.5 V).
• Pay attention to the polarity.
• Always change all batteries at the same time.
Display Sound
Press CLEAR 1 beep
Press CLOSE 1 beep
Key in guest code to open the safe OPEN + OPENED 2 beeps
Key in guest code to close the safe CLOSE + CLOSED 1 beep
Incorrect sequence or error entering
code
E-CODE 3 beeps
Enter new master code NEW
Repeat master code AGAIN
After changing the master code DONE 1 beep
Low battery detected LO-BAT
3 x error entering code HOLD15 3 beeps
Error in locking mechanism while
opening
E-RUN 2 beeps
Error in locking mechanism while
closing
E-RUN 2 beeps
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