I have a ninja coffee bar, had it for 2 years. The drip stop light lit while brewing, and wouldn't brew at all. I replaced the drip tray, and went away with one brew. Light returns. Seems to occur with unbalanced surfaces too, and whenever we slightly move it or shake it, the light MAY go off and brew for a bit. Has anyone taken one apart and disabled the drip stop sensor, and if so, how?