The DWHD660EFP is Thermador’s Sapphire® tier 24-inch dishwasher. It shares its core wash, drain, and heat-pump drying systems with the rest of the Radiance Collection, and its documented error codes are read the same way: the code itself points to a specific system (drainage, water inflow, drying, or dispensing) rather than a generic “not working” diagnosis.
On units equipped with Crystal Dry (Zeolite-based) drying, chamber-heater and fan-motor problems (E2120/E2130) are diagnosed as their own subsystem, separate from the standard heat pump.
Key Features
- 24-inch dishwasher, Thermador's Sapphire® tier (Radiance Collection)
- Stainless steel with Professional handle
- WiFi-enabled Home Connect® app support
Most Common Issues on This Model
Drainage problems (E22/E23/E24/E25 family)
Water-inflow problems (E14/E16/E17/E18)
Zeolite (Crystal Dry) drying problems (E2120/E2130), on units equipped with that feature
Detergent dispenser solenoid problem (E6900)