Steam cleaning apparatus

A steam cleaning apparatus comprising:

• a wand;
• a cleaning assembly coupled to the wand, the cleaning assembly including a steam generator;
• and
• a cleaning head pivotally coupled to the wand, the cleaning head including:
• a plurality of cleaning pads;
• a pad motor having a motor driveshaft;
• a drivetrain configured to transfer rotational motion of the motor driveshaft to each of the plurality of cleaning pads such that a rotation of the motor driveshaft causes a corresponding rotation in each of the plurality of cleaning pads, wherein the drivetrain includes a worm and a plurality of worm gears configured to be rotated by the worm;
• and
• a temperature sensor positioned directly above the worm, such that a central axis of the worm is aligned with a central axis of the temperature sensor when the steam cleaning apparatus is in-use to clean a floor, the temperature sensor being configured to measure a temperature corresponding to the drivetrain, wherein, when the temperature exceeds a temperature threshold, the pad motor is disabled, the temperature threshold being based, at least in part, on a temperature sensitivity of a material of at least one of the worm gears.