VERIFIED
Bosch dryer 3 is linked with nTC R2 fault; Cupboard Dry LED flashes in the progress indicator. Review the visible symptoms and safe external checks before deciding what the appliance needs.
If 3 appears on your Bosch dryer, the verified reference for this record is nTC R2 fault; Cupboard Dry LED flashes in the progress indicator. Use that as the technical anchor while checking the symptom pattern and any model-specific owner guidance.
The steps below stay at the owner-safe level. They are intended to document the condition and check accessible items without opening protected systems or turning the page into a risky repair tutorial.
At a glance
- Code: 3
- Appliance: Bosch Dryer
- Verified meaning: nTC R2 fault; Cupboard Dry LED flashes in the progress indicator
- Primary diagnostic direction: the electronic control path
- Service-area context: San Francisco; confirm coverage by ZIP code
What the control is reporting
The verified technical anchor for 3 is nTC R2 fault; Cupboard Dry LED flashes in the progress indicator. That wording should remain intact in the imported factual layer. The code narrows the fault path toward the electronic control path, but it does not automatically identify a single failed component.
What can happen while the code is active
Before changing settings or cycling power, note the behavior you can see or hear:
- The control can receive an impossible or missing reading.
- Temperature or cycle behavior might become inconsistent.
- The appliance can stop a program as a protective response.
- The same code can return immediately after startup.
What may be causing it
The source record supports considering the following possibilities without treating any one of them as confirmed:
- A failed sensor or probe.
- Damaged sensor wiring.
- A loose or corroded connector.
- An electronic input fault on the control board.
What you can verify externally
- Write down the full code and model number.
- Verify only external conditions that can affect the reading, such as a properly closed door or unobstructed user-accessible area.
- Avoid probe internal sensor circuits while the appliance is energized.
These checks are for information gathering only. Do not expose live wiring, bypass a safety device, defeat a door interlock, open a sealed refrigeration circuit, or perform undocumented service-mode procedures.
When continued operation is not appropriate
Stop for overheating, electrical damage, gas odor, or water near electrical parts; otherwise avoid repeated operation if the sensor is required for safe temperature control.
When external checks are no longer enough
If 3 remains active or comes back after the allowed external checks, move to model-specific diagnosis of the system associated with nTC R2 fault; Cupboard Dry LED flashes in the progress indicator. Repeated resets or parts guessing will not identify the real failure path.
For a service request, include what the appliance was doing immediately before the warning and which safe checks were already completed.
Why the full Bosch model/E-Nr matters
Use the exact Bosch model number when booking. It is the safest way to connect 3 with the correct technical documentation and related parts.
FAQ
For this record, 3 is associated with nTC R2 fault; Cupboard Dry LED flashes in the progress indicator. The exact model/E-Nr still matters because Bosch can use different hardware and diagnostic logic across product families.
Only if no stop condition is present and the appliance is otherwise operating safely. If the code repeats, normal operation is affected, or there is leaking, smoke, electrical odor, sparking, overheating, or repeated breaker trips, leave the appliance off.
Use only a normal reset that Bosch documents for the exact model. If the warning returns, repeated resets are not a substitute for diagnosis.
No. The code identifies a detected system condition. Model information, symptoms, and model-specific testing are still needed before a component is selected.
Have the full Bosch model/E-Nr, the exact 3 display, the cycle stage or operating state where it appears, the visible symptoms, and the external checks already completed.
Bosch service in the San Francisco area
Need model-specific diagnosis for 3?
If 3 remains active or comes back, request Bosch dryer diagnosis for the San Francisco service area. Include the complete model/E-Nr, exact code, symptom summary, and ZIP code so service coverage can be confirmed.
service notice: This site represents an appliance repair service and is not affiliated with or endorsed by Bosch.
Technical source: https://mypros.plus/error-codes/bosch/dryer
Model compatibility: Bosch reuses codes across series and model years, so Bosch Dryer 3 Error Code may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.