The DW244UB is a legacy Thermador undercounter dishwasher from before the current DWHD model-number convention, shared across a family of finish/integration variants — DW244UW, DW245UB/UW, DW246UB/UW/US, and the panel-ready DWI246UB/UW — that all use the same underlying Care & Use and Installation manuals, meaning they’re mechanically and electrically the same appliance under different exteriors. As an older platform, Thermador’s current numbered error code documentation (E22, E15, etc.) doesn’t cover this generation directly, so we diagnose it from the actual sign rather than a code lookup.
Two details are specific to this platform and worth checking early: it requires incoming water at 140°F (60°C) since it relies on that heat for drying rather than a powered drying element, and its drain line must have a high loop or air gap at least 20 inches above the floor to prevent wastewater from siphoning back into the tub. A unit that stops mid-cycle or leaves standing water is checked against both of those points, along with the dedicated 120V/12A electrical circuit, before assuming a pump or motor failure.
Key Features
- 24-inch built-in undercounter dishwasher, an older Thermador platform predating the DWHD model-number convention entirely
- Dedicated 120V/60Hz, 12-amp grounded circuit required, on its own dedicated line
- Drying relies on incoming hot water reaching 140°F (60°C) at the inlet rather than a Zeolite or heat-pump drying system
- Front leveling legs rotate by hand; the rear leveling leg adjusts via a center screw at the unit's front base, without needing to reach behind the unit
Most Common Issues on This Model
Won't turn on or start: check the circuit breaker/fuse box, confirm the dedicated 120V/12A circuit, verify Terminal Box wiring, and make sure the water shut-off valve is open
Dishes come out wet: confirm incoming water reaches 140°F at the inlet, since this platform depends on hot water for drying rather than a powered drying element
Water remains in the tub, or the unit stops mid-cycle: check that the drain hose has a high loop or air gap at least 20 inches (508mm) above the floor to prevent back-siphoning, and check for kinks or a disposer knockout plug left in place
Door doesn't stay closed or unlatches mid-cycle: door spring tension is adjusted with a Torx T20 screwdriver on adjustment screws near the unit's base