The battery has gone flat on my Sandleford N15115 safe. i have the key but it wont open (due to the battery being flat). how do i open to replace the battery? do i need a reset code?

Use the emergency key, that is what it is for.

Or you can open it with a large puck magnet.

https://www.google.com/search?q=Sandleford+safe+n+15+15

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Install fresh batteries.
Press reset button on left side of door (may be covered with protective plastic cap), beep will sound.
Enter new 3-8 digit code, press * or # key, green light will come on to confirm new code accepted.
Manuals are available at https://www.sandleford.com.au/sandleford-manuals

Open Sandleford Safe Combination
Try using the link attached, hope for best results.

Here you have a tutorial to factory reset codes of an electonc safe

How to reset code on an electronic safe

If it won't work for you, pleas contact Sandleford's website

Sandleford Security Safes

See contact data of Sandleford


Sandleford Contact

It could be the wrong key for this unit. Maybe you need to shake it a bit. What type of key is it?

http://downloadfromthisblog.net/69777-sandleford-electronic-safe-n15115-manual.html

i forgot my combination to my 15115 sandleford safe how do i open it

I have a new N15115,ES20 electronic safe,it will not accept a change of password.when new password entered it only beeps once ???

I have locked my safe I think by entering the wrong code. can you please advise how I can set a new code.... I cannot find the book that came with the safe.... thanks

lost key know code cannot open