His do I open a pen+gear safe when the knob is stuck

call the manufacturer,if you have problems closing it,then you will have problems openning it

PUT A SCREW DRIVER IN THE HOLE AND TURN IT

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/joe_0ca6379e2eceb740

Seems that the mechanism on the knob that is supposed to control whether the drain is open or closed has become disconnected or is stuck in the closed position. You could try to force it open by grabbing the knob with a pair of pliers and turning it, but you may risk damaging the knob, or you could dismantle the knob and see if you can reconnect whatever came apart

sounds like a broke gear inside

Rotate the knob counter clockwise to close the squelch. If this does not work, remove the knob by pulling it off gently and make sure the "pot" is turning with the knob. Verify the knob and "pot" are not damaged.

visit sentrysafe.com for help

You say it only opens two feet?? Then closes?? If I may if you a little bit more costly option. Dont replace the gears. They used to be really good 8 years ago but the way they make the gears now there too soft and often strip out much faster. I would suggest that you do what we call a motor head change out. Take off your old chain drive motor head and buy a new one. Pretty simple. Two things though one always make sure you put the new one in with the door down. And the traveler in the down position ( The traveler is the metal thing hooked up to the chain) but far and your gear that you have it sounds to me that you dont have the gears close enough.. but 100 percent on that but a door should never close on it own. It's not safe.

The operating instructions on the ES20 as per the crappy manual:

Open safe using emergency key provided

Insert batteries in the box inside the door

Opening the safe
a. pre-set factory code 159
b. input 159 (the yellow light will flash and the buzzer will beep), then press B or A button, the green light will be on, rotate the knob clockwise, pull outwards, the door is opened

Closing the safe: close the door, input the code (the green light will flash for 5 secs). Turn the knob anti clockwise, the control system will activate and the safe will be locked

Changing the code: open the safe, press the red button located inside the door, the yellow light will go on indicating the code can be changed. Input the new code (1-8 digits), then press A or B button, it shall be confirmed by two beeps indicating the new code has been accepted and stored. If the yellow light and buzzer beeps 3 times the code is invalid - try again

Emergency Key - store in secure place NOT inside the safe. Remove the override cover in the centre of the face of Safe (its a silver plastic panel with Sandleford Electronic Safe ES20 on it), insert override key (a cyclinder key) - hidden underneath the override cover panel - and turn anti clockwise, rotate the knob clockwise to open door

Changing the Battery - If the red and green light are on this indicates that the batteries are low and require changing. To ensure the batteries have been installed correctly test before closing the door

References:
1. Operating instructions EA Electronic Safe
2. http://www.secustar.com/products-en/estype-safe.htm

do you have the manual i have the same problem but close and the manual is inside the safe is the original keycode but dont remember it