Electronic Alarms and Home Security Devices - Ademco keypad question

I have an Ademco brand keypad with my security system that is about 4 years old. My keypad has the soft rubber type buttons/keys and for about 6 months now several of the buttons stick when pushed in. This has caused problems when we enter the house and try to disarm the system and can't do it as one or more buttons stick and we set off the alarm while trying to unstick the bad button. Does anyone know how to solve this problem? WD-40 or some other means of lubrication of the buttons?

Thanks,
Bill D

Skin oil and other gunk builds up on the keys and the keyframe and makes it stick like this. It can be cleaned.

Use a small flat screwdriver to release the catches on the bottom of the keypad and hinge the face up an off. Gently press the catches around the circuit board and lift it away from the face. Let it hang by the wires. you can remove the key membrane from the frame. Give the front face, especially the edges that the keys rub against a good cleaning with any kind of cleaner, like formula 409 or the like. Clean the keys themselves with something gentle, like the wipes they sell for cleaning computer screens and keyboards.

If the keys are still sticking, a very small amount of silicone spray is the thing to use. _No_WD-40_! It dries into a gummy film that makes things worse.