Patent ID: 7370495

Claim:
A temperature control for a washing machine, the washing machine including a tub, a hot water valve, and a cold water valve, said temperature control comprising: a first pressure sensor positioned to sense a full fill level in the tub and configured to generate a full fill signal when the tub is full; and a second pressure sensor positioned to sense an intermediate fill level, the intermediate fill level less than the full fill level and corresponding to an adjustment level in the tub, said second pressure sensor configured to generate an intermediate fill signal when the intermediate fill level is reached, said first pressure sensor and said second pressure sensor operatively coupled to the hot water valve and the cold water valve, said first pressure sensor generating the full fill signal and said second pressure sensor generating the intermediate fill signal to facilitate activating the hot water valve and the cold water valve in response to sensed pressure within the tub to control a wash water temperature without the aid of temperature sensors.