DFAM - Noise always audible

As of late the noise oscillator on my DFAM is always audible. Even when I turn the volume on all the oscillators in the mixer, including the noise, I can still here the noise playing through a sequence when I press play.

Any suggestions for a fix?

Do you have both the NOISE/EXT LEVEL control and the NOISE/VCF MOD control turned all the way down?