I have Scantronic 9752 panel that has started showing "Code blocked" and "Invalid Code" messages intermittently. The system is currently unset. Can anyone please tell me what's happening? Many thanks in advance.

PN72, October 2010

This is interesting, Codes blocked normally means the system is looking to be unset with fob's only, A programming option,
Cordless phones and Wifi play havoc with Wire-less alarms despite the companys who make them trying to convince us engineers otherwise, General publc please note this,
regards
Nick

Nick, October 2010

After some trials, I have concluded that it's my cordless phone base unit that is probably interfering with the panel. As I have mentioned in my previous post, there is no one apart from me having access to the panel and the problem was intermittent (even when I was not touching the panel).
I moved the base unit to a different room and since then I have not seen the code blocked error. However, if I move the base unit back to its place, the panel starts going funny. Same happens when I put my wireless router there. May be it's too close to the panel so it's causing radio interference.
Thank you taking time to help me out.

PN72, October 2010

The problems mentioned are as GTS describes. Someone is putting in invalid codes. Have you a new cleaner. Has a young child now grown high enough to reach the keypad?
Otherwise I would recommend a "reboot" and start again.
The clue is as mentioned, too many key presses. Alarm panels do not lie.

Alarm, October 2010

gts, thanks for your reply but this is happening randomly. i.e. my code works fine when the system shows normal status and I can set the alarm. When the error appears, obviously the code doesn't work. There is no one else in the property to play with the keypad. The error message appears intermittently as if the panel is trying to communicate with the main unit but sometimes there is a blip.

PN72, October 2010

some one has been playing with the keypad and locked you out,you have a problem my old son,
you will have to call an engineer out to sort out the problem,as you wont have the engin,manual,a word of advice,my uncle did same thing to one of our systems,
he got a few drinks in him,and was showing a friend his alarm,and forgot his code too many times,it went into lock out,now,am not saying this happend to you,but,panels dont go into lockout for nothing

gts, October 2010