The SHPM78Z55N uses CrystalDry. Its matched manual lists CrystalDry as unavailable with Speed60, Express and Rinse, so an unavailable option is not automatically a fault. Compare cycle compatibility, loading and the left-side vent before arranging model-specific service.
Models covered
SHPM78Z55N/01 support and SHPM78**** manual 9001411179_D. Match the full E-Nr and supplied revision. This is a CrystalDry model, not an AutoAir door-opening model.
Stop and isolate power before permitted user maintenance, and let water cool. Watch for sharp debris. Do not reach blindly into a sump, open electrical panels or use drain-opening chemicals. Stay clear of water near electrical equipment.
Compare the behavior
Match the documented control, cycle or feature before interpreting the result. The comparison below keeps normal model behavior separate from an unresolved fault.
| Observed state | Interpretation / next step |
|---|---|
| Speed60 / Express / Rinse | CrystalDry is not available in the matched compatibility matrix. |
| Items obstruct left-side vent | Correct loading using the owner manual. |
| Supported cycle and option, persistent poor result | Model-specific appliance diagnosis. |
Model-specific checks
Check whether the option is available on that cycle
Record the selected cycle and option. The manual’s compatibility matrix marks CrystalDry unavailable for Speed60, Express and Rinse. Do not interpret that normal incompatibility as a failed control button.
Keep the documented vent clear
Review the matched loading instructions and keep items away from the left-side drying vent. Do not block it with plastic pieces or attempt to open the drying system to inspect the minerals.
Separate pooled water from a wider decline
Note whether only recessed shapes or plastics remain wet, or whether an ordinary load has suddenly changed. Review the model’s rinse-aid and loading guidance before changing multiple settings at once.
Use service for a supported-cycle failure
If a compatible cycle with the option selected still gives a marked poor result after documented owner checks, provide the E-Nr, cycle, loading and any code to Bosch. Do not order a heater or open the drying assembly based on wet dishes alone.
What to record next
Check the selected cycle, options and documented vent clearance for this CrystalDry model. CrystalDry and AutoAir are different drying features; instructions about an automatically opening door do not apply to CrystalDry.
When to stop and get help
Only carry out maintenance permitted in your model’s manual. For service, note the full model number and suffix, displayed code, selected cycle and what happened during the checks. Leave internal wiring, gas components, pumps and safety devices to a qualified professional. A symptom alone does not identify a failed part.
Sources & references
- Exact model uses CrystalDry. Model specifications, drying-system row
- CrystalDry unavailable for Speed60/Express/Rinse; keep left vent clear. Owner manual matrix p32, loading pp16/25; drying checks p46
- Bosch: SHPM78Z55N/01 support
- Bosch: SHPM78Z55N specifications
- Bosch: SHPM78**** owner manual 9001411179_D
Based on publicly available manuals, manufacturer support and the references listed here. We have not inspected or tested your appliance. Follow the instructions for your exact model; a guide cannot replace an in-person diagnosis.