Error Code: E3300 Difficulty: Easy
Problem: Water inlet or overfill issue.
How to Fix E3300 Error (Step-by-Step)
- Press and hold the power button to turn off the dishwasher.
- Turn off the water supply to the dishwasher and confirm the error stays cleared during a full test cycle.
- Check that the water supply hose is not kinked or blocked.
- Ensure the drain hose is not clogged and confirm the error stays cleared during a full test cycle.
- Clean the filter at the bottom of the dishwasher and confirm the error stays cleared during a full test cycle.
- Turn the water supply back on and confirm the error stays cleared during a full test cycle.
- Restart the dishwasher to see if the error is cleared.
- Turn the appliance off, wait about 2 minutes, then turn it back on.
What to Check Next on This Bosch Dishwasher
Bosch Dishwasher Error E3300: Use the code or symbol as the starting clue, then confirm the actual symptom before ordering parts.
- Confirm whether the display is a normal cycle/status symbol or a recurring fault that stops operation.
- Check water supply, filter, sump, spray arms, drain path, and door latch before replacing electronic parts.
- If the same problem returns after basic checks, inspect the matching sensor, pump, heater, wiring, or control path based on the symptom.
If the issue returns after these checks, match replacement parts to the complete Bosch model number from the appliance tag. The same code can point to different components depending on the exact model and when the failure appears.
Recommended Parts to Check
No exact official OEM part number is listed here because the correct Bosch dishwasher part can vary by complete model number. These are targeted part-category searches, not universal fit claims.
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Bosch dishwasher water inlet valveCommon replacement category: Water inlet valveFit note: Exact OEM part number varies by full Bosch dishwasher model number. Confirm compatibility before buying.Confidence: Medium
This category can be relevant for fill and water-supply faults after the tap, hose, and inlet screen are checked. -
Bosch dishwasher drain pumpCommon replacement category: Drain pumpFit note: Exact OEM part number varies by full Bosch dishwasher model number. Confirm compatibility before buying.Confidence: Medium
This category can be relevant for drain and standing-water symptoms after the filter, sump, and hose are checked. -
Bosch dishwasher circulation pumpCommon replacement category: Circulation pump / wash motorFit note: Exact OEM part number varies by full Bosch dishwasher model number. Confirm compatibility before buying.Confidence: Medium
This category can be relevant for wash, spray-arm, and circulation symptoms after filters and spray arms are checked.
Before ordering: match the part to the complete Bosch dishwasher model number on the appliance tag.
When It’s Better to Replace Than Repair
Dishwasher repairs can add up quickly when the pump, control, heater, or leak-related parts fail.
Confirm cabinet width, water line, drain routing, electrical connection, and panel style before ordering.
For repair parts, verify exact fit with the full dishwasher model number before buying; these links are general replacement-appliance shopping options.
- [OK]Drain pump or circulation pump failure
- [OK]Leaking tub, door, or float-switch issues
- [OK]Heater or control failures on an older unit
- [OK]Repeated poor washing or drying performance
Recommended Dishwasher Replacement Options
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Still Not Working?
If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.
More options (for a better recommendation)
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Expert: Mike Sullivan
EPA Section 608 Certified Technician with 18+ years experience.
Read Editorial Standards →Browse all Bosch error codes: Bosch Error Codes
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