Elk KP2 surface mount resistor failure


Active Member
Hi there,
Have any of you august personages had an Elk KP2 surface mount resistor heat up and fall off the board? Hot enough to smoke up and sting?
At least, I think it is a resistor even tho I haven't been able to trace the part. this was the middle of a set of 3 near the header pins.
The 'spare' KP2 I used to replace the failed one had a different series of resistors from the same manufacturer.
I have put in a replacement request to AO. The spare was intended for the main entry of this crazy house.
In all my Elk hardware purchased over the years I've only encountered a bad strobe light and an EZ8 that started false alarming for no apparent reason (RF receiver loss and fail with a 548E).
Failures in the field happen all the time, even on items QC'd
It might be a transzorb used to protect the 4 wire bus from surges etc.  Is the keypad powered off the panel or an aux power supply? 
Just to close this: Elk has emailed me that they're reviewed the toasted one and are sending me a replacement :)