Surface cleaning apparatus with scrub mode

A surface cleaning apparatus, comprising:

• a supply tank;
• a fluid dispenser in fluid communication with the supply tank;
• a brushroll rotatable about an axis;
• a brushroll motor configured to rotate the brushroll in a first direction about the axis and in a second direction about the axis;
• and
• a controller configured to control the brushroll motor, the controller comprising a memory storing instructions that, when executed by the controller, effectuate a scrub mode comprising:
• oscillating the brushroll forward in the first direction about the axis and backward in the second direction about the axis to scrub a surface to be cleaned;
• wherein oscillating the brushroll comprises switching a rotational direction of the brushroll at least every 0.5 seconds or less for the duration of the scrub mode.

A surface cleaning apparatus, comprising:

• a supply tank;
• a fluid dispenser in fluid communication with the supply tank;
• a brushroll rotatable about an axis;
• a brushless DC motor configured to rotate the brushroll in a first direction about the axis and a second direction about the axis;
• and
• a controller configured to control the brushless DC motor, the controller comprising a memory storing instructions that, when executed by the controller, effectuate a scrub mode comprising:
• oscillating the brushroll forward and backwards about the axis to break up a stain on the surface to be cleaned;
• wherein oscillating the brushroll comprises repeatedly rotating the brushroll in the first direction about the axis and in the second direction about the axis for a plurality of bidirectional cleaning cycles.