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Honeywell mk7 keypad hum?

Hi all this keypad constantly hums otherwise all is fine.The keypad appears to work as it should do and I've tested the wiring for shorts,data tampers etc.

Any ideas?
PAC_APC SERVICES., March 2014
there is nothing in keypad to hum,best buy a good panel

gts, March 2014
Nor mine.

I've never heard or experienced this or is anything documented with such issue either.

e manno, March 2014
The RKP does not "HUM".
Well, never in my experience.
Have you gone into Option 61 and looked at keypad comms?
Can you describe the noise more if possible.

Alarm, March 2014
link Click here to see other fixes for Honeywell.