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Thermador Dishwasher Models: Radiance and Star-Sapphire Guide

Model-family repair guidance for Thermador dishwashers, wash circulation, drainage, drying, leaks, and panel-ready installation.

Technician inspecting the side and leak tray of a panel-ready Thermador-style dishwasher

Thermador dishwasher families include stainless and custom-panel configurations with different rack, wash, drying, lighting, and connected-control features. Marketing names help identify capability, but the full E-number and version suffix govern parts. A service complaint should be tied to fill, circulation, drain, heat, dry, or door operation.

Identify the exact equipment first

  • Radiance Collection dishwasher families
  • Star-Sapphire and Sapphire feature levels
  • Stainless and custom-panel installations
  • Connected controls and model-specific drying systems
  • Photograph the complete Thermador model and serial tag before scheduling service

Protect people, property, and stored product first. Stop for gas odor, smoke, damaged wiring, active leaks near electrical parts, or repeated breaker trips. Leave internal gas, refrigerant, and live-voltage testing to a qualified technician.

Systems that shape the diagnosis

Fill and wash circulation

Water level, inlet flow, filters, spray arms, circulation pumps, and loading determine wash pressure. A completed cycle with residue differs from a machine that never filled.

Drain and leak detection

Pumps, hoses, connections, seals, door geometry, and base-tray sensing can stop a cycle. Find the water source before resetting the fault.

Heating and drying

Water heat, sensors, ventilation, rinse aid, and drying components interact. Persistent cold water is different from moisture limited to plastic items.

Panel and hinge load

Custom panels affect balance and closing force. Mounting or alignment can cause latch and seal symptoms that mimic an electrical door fault.

How the dishwasher format changes diagnosis

Save the full code and note the cycle stage, water entry, spray sound, remaining water, temperature, and precise leak location. Check filter and user-accessible obstructions without opening electrical panels. Stop for active leaks near power or repeated breaker trips.

Repair planning, access, and installation

Removal requires protecting the panel, floor, and counter while managing water, drain, and electrical connections. Stone-counter mounting and panel weight can change the procedure. Diagnose cycle behavior before pulling the dishwasher whenever safe.

Why the full model number matters

Thermador uses a complete E-number with a slash suffix. That suffix matters for controls, pumps, racks, and documentation even when the front looks unchanged. Photograph the entire tag rather than recording only the base model.

Frequently asked questions

What does Star-Sapphire mean for repair?

It identifies a feature level, but it does not replace the full E-number. Wash, drying, lighting, and control components can vary by model and version.

Why does the dishwasher stop with water inside?

The drain path, pump, hose installation, check valve, filter, control, or leak protection may have interrupted the cycle. The exact stage matters.

Can a panel-ready door cause latch errors?

Yes. Panel mounting, weight, hinge balance, alignment, and cabinet contact can affect closure and latch confirmation.

Where should I find the model number before Thermador service?

Use the rating-plate location shown in the owner documentation for the exact dishwasher configuration. Photograph the complete plate rather than typing a partial number, because suffixes and production revisions can change parts and procedures.

Ghost Appliance Repair is an independent service company and is not affiliated with or endorsed by Thermador or its manufacturer. Brand and family names identify the equipment discussed. Availability of service depends on the exact model, condition, parts support, and location.

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