Safe Won't Open? What to Check Before You Call

By Michael Schiavone, owner of Aspire Safe and Lock · Updated October 31, 2026

Electronic locks

Electronic locks give you security with ease of use: enter your code and turn the handle. When one won't open, here is what Mike tells customers.

• Most failures to open are battery related. Carefully check the battery in the keypad. Look at the brand and the expiration date.
• Use the right battery. Mike recommends only Duracell Procell or Energizer Industrial. A new battery should have an expiration date five or more years out. In 2026, that means 2031 or later.
• Broken battery connector or keypad wire? Don't play around with the wires. Call to schedule an appointment.
• Battery and wires are good, keypad still won't work? The keypad or the lock may have failed. Call to schedule an appointment.
• Keypad acting funny or working on and off? Don't spray WD-40 or any lubricant into the keypad or the lock. Book maintenance before it fails.

Electronic locks also wear out with age. Mike's rule of thumb is that a lock past about ten years from its manufacture date should be replaced, keypad and lock together, before it causes a lockout. More on that on the electronic safe locks page.

Mechanical (dial) locks

Mechanical locks are EMP-proof and built like tanks, and it's rare for one to fail. A well-maintained mechanical safe lock should last for many, many years. That's why antique safes and antique bank vaults are still around and still working.

• Know your dialing sequence. Most residential safes have a standard lock with a three-number combination. The most common sequence to open is 4 left, 3 right, 2 left, then 1 right.
• Dial slowly and stop exactly on your number. If you go past it by one or more, you may need to start over.
• Dial feeling tight or sluggish? Don't spray WD-40 or any lubricant into the dial or the lock. Book maintenance before it fails.

Never cut the hinges

If you've lost the combination and the safe door is closed, don't cut the door hinges. It will not open the safe door, because the locking bolts are on the other side. It also makes the safe opening that follows much more dangerous.

What not to do

• Don't spray WD-40 or any lubricant into a dial, a keypad or a lock.
• Don't play with the wires behind a keypad or at a broken battery connector.
• Don't cut the hinges. It won't open the door.

Maintenance before it fails

Safes need care like anything else with moving parts. Mike recommends preventive maintenance once a year, so a sluggish dial or a flaky keypad gets dealt with before it locks you out. It is much easier and cheaper than an emergency opening. See safe repair and maintenance.

When you call

Tell Mike the brand, whether it has a dial or a keypad, and what happened. Clear photos of the whole safe door, the handle and the dial or keypad help him plan before he arrives. Text them to (661) 927-7473 or email info@aspiresafeandlock.com. On past jobs he has opened customer safes and installed a new lock and keypad so the safe went straight back into use. More on the safe opening page, or see lost safe combination if you don't have the code at all.