Home Security Systems
Home Security System Repair Questions? Ask a Technician.
First you could try cleaning the circuit board with electronic contact cleaner. That may help the keypad to make better contact with the circuit board.
If that does not work then we can look at replacements, however given the age of the system it may be difficult to obtain a compatible substitute. Could you attach a photo of the keypad and let me know the model number if cleaning the circuit board does not help?
Yes, you can use IPA instead. Let me know if cleaning works?
Could you also attach a photo of the control pad?