you need to type in #989 CLEAR (25327) then enter (P18D far right third button from the top; P34D second row from the right third button from the top)
or maybe it works without the enter button haven't done it in a while, easy to test do the CLEAR then wait for about 5 seconds if it reboots you are good.
Joe W.
FHandw., ACS
If you can't be good, be good at it!