VERIFIED
Bosch dishwasher E0100 is associated with heat-pump motor circuit fault at the main control board. Review the operating signs and safe external checks before deciding on the next step.
When E0100 appears on a Bosch dishwasher, the control has registered heat-pump motor circuit fault at the main control board. That points the diagnostic process toward the heating or temperature-control path, but the display alone is not enough to choose a replacement part.
The guidance below stays at the owner-safe level: observe the symptom, check only accessible items supported by the model documentation, and stop before opening protected electrical, water, gas, or mechanical systems.
At a glance
- Code: E0100
- Appliance: Bosch Dishwasher
- Verified meaning: heat-pump motor circuit fault at the main control board
- Diagnostic direction: the heating or temperature-control path
- Service area context: San Francisco; confirm coverage by ZIP code
What the code is pointing to
The technical anchor for E0100 is heat-pump motor circuit fault at the main control board. That description should remain unchanged when the page is imported. What can vary is the hardware behind the condition, so the model/E-Nr and the observed behavior are necessary context.
For this reason, E0100 should be used to narrow the troubleshooting path toward the heating or temperature-control path, not as automatic proof that one specific component has failed.
Operating signs to record
Before changing settings or cycling power, note what the appliance is doing. Useful observations include:
- The dishwasher can stop before a cycle finishes.
- The control panel might respond inconsistently.
- The fault display can recur shortly after power is restored.
- Normal wash functions can be unavailable.
Possible causes from the source record
Based on the source record, diagnosis may need to consider the following possibilities without assuming any one of them is confirmed:
- Main control-board circuit fault.
- Relay or switching fault within the control path.
- Wiring or connected-load condition that the board detects.
First checks to make safely
- Photograph or write down the exact code before resetting anything.
- If there is no burning smell, visible damage, or repeated breaker trip, switch the dishwasher off at the breaker for about 30 seconds as Bosch directs, then restore power once.
- Avoid remove the control module or probe internal wiring as a homeowner check.
These steps are meant to gather useful information without exposing live wiring, bypassing an interlock, defeating a leak-protection device, or opening a system the owner documentation does not designate for user access.
When to stop using the appliance
If the warning comes back after the single power reset, the control circuit needs model-specific electrical diagnosis. Repeated resets do not identify which relay, board circuit, connection, or load created the fault. When requesting service, include the complete Bosch model/E-Nr. Similar-looking dishwashers can use different controls, pumps, drying systems, and diagnostic logic.
If the code comes back
If the warning comes back after the single power reset, the control circuit needs model-specific electrical diagnosis. Repeated resets do not identify which relay, board circuit, connection, or load created the fault. When requesting service, include the complete Bosch model/E-Nr. Similar-looking dishwashers can use different controls, pumps, drying systems, and diagnostic logic.
A useful service request includes the exact display, what the appliance was doing immediately before the warning, and which external checks were already completed.
Use the complete Bosch E-Nr
Use the complete Bosch model/E-Nr when matching E0100 to technical documentation. Similar-looking products can use different sensors, controls, pumps, motors, or diagnostic logic.
FAQ
For the source record used here, E0100 is associated with heat-pump motor circuit fault at the main control board. The complete model/E-Nr still matters because Bosch can use different hardware and diagnostic logic across product families.
Do not continue if the warning is accompanied by the stop conditions listed above. Water near electrical parts, leaking, smoke, a burning odor, sparking, or repeated breaker trips are reasons to leave the appliance off and arrange service.
Where the Bosch documentation for the exact model allows a normal power reset, use it once after recording the code. A returning warning means the underlying condition still needs attention; repeated resets are not a repair.
Not necessarily. An error code narrows the detected condition or system. The model number, symptoms, and model-specific testing are still needed before selecting a component.
Have the full Bosch model/E-Nr, the exact E0100 display, the cycle stage or operating state when it appears, the visible symptoms, and the safe checks already completed.
Bosch service in the San Francisco area
Still seeing E0100 on your Bosch dishwasher?
If E0100 remains active or returns, request Bosch dishwasher diagnosis for the San Francisco service area. Include the complete model/E-Nr, the exact code, a short symptom description, and your 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://www.bosch-home.com/us/owner-support/error-codes/dishwashers
Model compatibility: Bosch reuses codes across series and model years, so Bosch Dishwasher E0100 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.