how do I do a factory reset on GE Caddx NX4 security system (2025 Update)

Apr 19, 2015 Last reply: 1 year ago 22 Replies

I inherited a GE Caddx NX4 system not operational. Replaced the battery and installed new contacts on all doors. Everything was in order and looked fine. Then I got a code from the previous owner but as soon as I put the code in, the system armed and alarm went off.



Now system is permanently armed, all the zones are flashing plus the service light is also flashing. The keypad does not respond. No code I try and submit responds. Tried to disconnect the battery as well as the power for 48 hours thinking it would clear the memory. Does not work.



When I link the power and/or the battery the alarm sounds and all the above remain flashing.



I disconnected the wires from the keypad in total. When reconnecting the status quo remains the same.



How do I do a factory reset? How do I clear the memory and start all over again. The keypad is a NX-124G*


As a special security code is required to do "installer programming", I was going to send the op a private email, but when I found that his email address is a long string of digits at example.com, I decided to decline. I went to example.com and found that it is not a normal email service provider.

John

Hi John. Can you send me that info to my email? Thanks!

The quick answer is their is none!!

Go here and read:

formatting link
Then go to eBay and enter a search for (Instant Unlocker Linear)

Then............... Place the NX-4 in the nearest scrap pile!!

Have a good week!!

Les

I was never a fan or user of the NX-4, But I seem to remember reading somewhere many years ago, of a trick some had used where by an installer could

-power down the unit

-place a short between two points on the PCB

-then re-power the unit

-then after several seconds, remove the short the unit would then reboot itself from ram to the factory settings. . But given how long ago that was, I maybe think of a completely different panel.. .. RTS

sighting the link you listed, does the NX-4 use a command code either before or after the user code to cause a reaction from the panel.?

- examples

- user code then command code

- command code then user code (command code could be any key on the keypad) (on some keypads that information is printed on the keypad or a protective door) . If so, you might try that on the panel to turn off the arm status..

Hi Rocky,

I think that trick was for the DSC panels............ maybe??

The NX panels had no built in backdoor, except for some costly magic thingie.

Les

I almost switched over the the NX-8E to replace my Napco panels for medium and larger installs and bigger due to the scalability. I installed a couple and really liked the ability to put expanders with their own power supplies in different buildings. It was the way I always thought expansion should have been done. Then some things changed (they got bought out maybe?) and I decided to wait and see. Then I went to the X255 instead for my larger systems due to the integrated access control.

One thing I liked about the NX8E is that I could use a faster modem to remote program. I used a USR Sportster in its fastest mode. Uploads and downloads were crazy fast compared to using a Hayes or Cardinal modem. Then came StarLink for Napco with integrated data upload/download and I was gungho to sell celluar. Its was even faster.

tks Les ole memory isn't what it use to be... RTS

yea, I understand the need for speed.. ;-) last one I ever worked on before I was forced retired, was an FBI with the Napco Starlink.... (also the best part, NO telephone line needed) Sweet comes to mind.... RTS

Hi Rocky,

Yes, I totally agree and more. BTW as I understand(always wrong) it will not get better!!

It would be somewhat easier if I had wrote a daily ledger to document the stuff I learned daily and skip over what I learned the day before. IF I had done that it would take me a number of years to find the small tiddybit of knowledge that was forgotten.

Then again who would shiv-a-git!!

Have a good hump day, as they say!!

Les

The interesting thing is, That I can still remember the layout of attics and house wiring to places I haven't set foot in for well over 30 years.. ;-0 . But keeping the two dozen different panels I'd used over that same time span, just fade in and out of memory... from the Ademco 1000 up to the last one a big fancy FBI system.. . Did you ever see the Rokonet 8 zone alarm panel.. ? (I still have a eval panel they sent me...) (even had a full metal box with a linear 8 channel receiver inside for eval....) . the thing we've all seen and used over the years.. some of the new guys, just look and grin whenever we talk about the old days... . Like when we use to make heat detectors for attics from scotch tape and bare copper wire.. . and what about all those guys that became master artist applying window foil. I've seem some really wonderful works of art in their designs... . RTS

I still have my box of non-lead foil stuff I bought from Mike Sabodish. Just ran across it in the shop the other day. I never windows over audibles, but I did foil repairs, and made cut boards with the stuff.

The interesting thing is, > That I can still remember the layout of attics and house wiring > to places I haven't set foot in for well over 30 years.. ;-0 > . > But keeping the two dozen different panels I'd used over that > same time span, just fade in and out of memory... > from the Ademco 1000 up to the last one a big fancy FBI system.. > . > Did you ever see the Rokonet 8 zone alarm panel.. ? > (I still have a eval panel they sent me...) > (even had a full metal box with a linear 8 channel receiver > inside for eval....) > . > the thing we've all seen and used over the years.. > some of the new guys, just look and grin whenever we talk about the > old days... > . > Like when we use to make heat detectors for attics from scotch tape and > bare copper wire.. > . > and what about all those guys that became master artist applying > window foil. I've seem some really wonderful works of art in their > designs... > . > RTS

Hi Rocky,

It would seem that you may have had a different environment than I did.

I had some foil that I got somehow and did a small repair.

Also there was a very large building that I took over the alarm system that was a 2 zone that Zone 1 was the Delay Entrance Door and Zone 2 was a total of 36 Doors and Windows in series. Their was a problem with Zone 2 not closing and it took me about 3 hours to find the bad sensor on a window in the middle of the circuit!?!?! Lot's of walking!!

Some of the stuff I did only comes back a few hours after I get a call from an old customer that had a question of some sort. Even now as I am typing I get small spurts of brain pharts that I need to flush!!

Which now that I have typed the above I think I will just go make myself some lunch so I can try and think of some other stuff on my daily todo's!!

Later,

Les

I remember a spool I had (yes wire did use to come on spools) that has gator clips on each end.. I'd use it to trouble-shoot those single loop problems.. (clip on one end of a loop at a switch or something, then roll out the wire till I got to the next switch check the continuity, then repeat all around the loop till I found the break.. If I remember right, near all those single loop problems were at doors.. usually a faulty flex cord (from frame to door, you ask why the door, for the foil, silly ;-) ).. another reoccurring problem was switches that got tarnished and developed resistance, which in turn dropped the loop voltage below the relay holding level.. that problem usually showed up when the battery started going down.. In those days you could even clean the contacts inside a switch, (this was before they came in little glass tubes) . Yep, those were the days... RTS

LOL

I kinda did something similar. I broke the loop into two loops and found the bad loop. Then broke that loop again and found the bad loop. And then did it again & again until I found the window that was the culprit!! Once I replaced the bad switch I put all back together, tested, and went home!! Oh and sent my labor bill$$

Yep, those were the days!!

Les

Usually I found damaged foil. I would usually refoil the whole pane.

The next most common the was contact plate for opening windows. Sand paper and silicone grease. Done.

Tracing big loops. You guys did it the hard way. Fresh battery and a loud piezo buzzer. Walk around with a a handful of relatively short jumpers to bypass each point and when you hear the buzzer you found it. If you never hear the buzzer you have a bigger problem.

Well now that (WE) have posted three(3) different solutions to the same problem it would be great if some Alarm Novice will just maybe happen to read all Three(3) and use the one that suits his/her brain!!!

Then again.................. NAHHH never gonna happen!!! LOL

Les

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