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Categories > Mend Security Systems, Home Alarm Systems > Question
Q & As - mend, repair, fix security systems, home alarm systems, intruder alarms, burglar alarms, wireless, wired, alarm, sensor, sound, trigger, false alarms, siren, remote control, key code, pinNavigate to ...
Security Systems, Home Alarm Systems (6057 other questions)
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all lights flashing on my remote control keypad?

I have a challenger home alarm system which is about 20 years old. I needed to replace the remote keypad and was supplied with a challenger AP11RKP. This was quite straightforward, connected the 12v supply then the tamper wires but the other two wires were lettered A and B but the corresponding ones on the main control panel were C and D. When I powered the system back up all the lights on the RKP are flashing and none of the default codes will be accepted. I am wondering if firstly, this RKP is compatible with my system and if so how to fix the problem?

Steve Bryson
June 2020

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