crwdns2934241:0crwdne2934241:0 bill
crwdns2934249:0crwdne2934249:0:
That could be a hardware problem with stuck sensors BUT every time it happened to me, there was paper buried so that it was very difficult to find. You may have to open/remove more parts to get to it.
crwdns2915684:0crwdne2915684:0:
open