Abstract: A refrigerator appliance is provided with a drain pan mounted below a condenser of the refrigerator appliance. The drain pan includes features such as a channel for directing air through the drain pan. The channel can, e.g., increase the efficiency of the condenser and/or promote evaporation of liquid contained within the drain pan.

Abstract: An evaporative cooling condenser for a household appliance cooling system includes a water source, a heat exchanger configured to contain a refrigerant, and a fluid heat transfer device, the fluid heat transfer device configured to receive water from the water source and apply the water to the heat exchanger for rejecting heat from the heat exchanger.

Abstract: An ice level sensing system for an appliance having a cavity with a cavity wall. An ice storage bin and an ice maker are disposed within the cavity. The ice storage bin is configured to hold ice discharged from the ice maker. The ice level sensing system includes a transmitter for transmitting a light beam and a detector for detecting the light beam. The transmitter and the detector are disposed on the cavity wall. A reflector is disposed relatively remote from the transmitter. The transmitter is operative to project the light beam toward the reflector. The transmitter and the detector are angled relative to each other so that the light beam reflected by the reflector is directed toward the detector.

Abstract: An evaporative cooling condenser for a household appliance cooling system includes a water source, a heat exchanger configured to contain a refrigerant, and a fluid heat transfer device, the fluid heat transfer device configured to receive water from the water source and apply the water to the heat exchanger for rejecting heat from the heat exchanger.

Abstract: An ice level sensing system for an appliance having a cavity with a cavity wall. An ice storage bin and an ice maker are disposed within the cavity. The ice storage bin is configured to hold ice discharged from the ice maker. The ice level sensing system includes a transmitter for transmitting a light beam and a detector for detecting the light beam. The transmitter and the detector are disposed on the cavity wall. A reflector is disposed relatively remote from the transmitter. The transmitter is operative to project the light beam toward the reflector. The transmitter and the detector are angled relative to each other so that the light beam reflected by the reflector is directed toward the detector.

Abstract: An apparatus includes a cabinet defining a chamber, a drawer slidably positioned within the chamber and movable between an open position and a closed position, the drawer defining a compartment configured to receive a load, in the closed position the drawer coupled to the cabinet and restricting air flow exiting the cabinet. The apparatus includes an ozone generator configured to selectively generate ozone into the compartment, an ozone conversion device configured to selectively convert ozone to oxygen, and a sensor configured to detect a level of ozone within the compartment and generate a signal representative of the level of ozone. A controller is operatively coupled to the ozone generator, the ozone conversion device and the sensor, and is configured to activate one of the ozone generator and the ozone conversion device in response to a signal received from the sensor.