The Thermostat Housing is an OEM part for Whirlpool dishwashers. It encases the thermostat responsible for accurately monitoring water temperatures throughout cleaning cycles.  Symptoms of a faulty housing include: Inconsistent or improper water heating   Delayed or incomplete cycles from temperature control issues Error codes or failure detection by the control board Causes may involve cracks allowing steam penetration, loose mounting points compromising seals, or damaged seals leaking interior thermostat components.  This OEM replacement fits Whirlpool, KitchenAid, Jenn-Air, and some Kenmore models as well.Part Number W10292870 (AP4539731) replaces 1875272, AH2580527, EA2580527, PS2580527.