Troubleshooting; Maintaining And Cleaning The Safe - Dometic MD310 Installation And Operating Manual

MD310, MD390, MD450
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Troubleshooting

If you are unable to rectify the fault, get in touch with a specialist workshop.
Display Fault
LO-BAT The safe lock doesn't
close.
E-CODE Three short audible
signals sound.
–
HOLD15 Two short audible
signals sound
whenever any button is
pressed.
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Maintaining and cleaning the safe

A
NOTICE!
Do not use sharp or hard objects or cleaning agents for cleaning as these
may damage the product.
➤ Occasionally clean the product with a damp cloth.
EN
Possible cause
The battery is low.
False code
False master code
The safe lock is
disabled after the
wrong code has been
entered three times.
Troubleshooting
Suggested remedy
➤ Replace the batteries.
➤ Enter the correct code.
➤ Enter the correct master
code.
➤ Wait for 15 minutes
without pressing any
buttons. The safe lock is
no longer disabled
following this 15 minute
waiting period.
➤ Following this, enter the
correct code.
➤ Open the door
mechanically with the
master key.
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