In SX Microcontrollers, SX/B Compiler and SX-Key Tool, william wrote: Nick, I am placing the board outside but beside the lamp now, but the problem persists. Today I am going to add a AC 250v MOV at the incoming power inputs and test for a few days. Beau, "what if the capacitor is discharged?" If the capacitor can be fully discharged by the spike, that may mean we need to block the spike earlier before it gets to to capacitor right? That's why I am trying the MOV now. ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=304658#m305772 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2008 (http://www.dotNetBB.com)