Error Code: F15 Difficulty: Hard
Problem: The water protection system has been activated to prevent flooding.
How to Fix F15 Error (Step-by-Step)
- Turn off the power to the dishwasher at the circuit breaker and shut off the water supply valve, usually located under the sink.
- Carefully slide the dishwasher out from under the counter. You may need to remove the mounting screws securing it to the countertop first.
- Place towels on the floor and carefully tilt the dishwasher forward at a 45-degree angle to allow water trapped in the base pan to drain out.
- With the dishwasher on its back, remove the screws holding the base panel to access the internal components.
- Inspect the sump, hoses, and the heat pump/circulation motor for any visible signs of cracks, damage, or loose connections that could be the source of the leak. The heat pump is a common source for leaks.
- Replace the faulty component. This often involves disconnecting hoses and electrical connectors, removing the old part, and installing the new one in its place.
- Reassemble the dishwasher by reattaching the base panel, sliding it back into place, securing it, and reconnecting the power and water supply before running a test cycle.
- Turn the appliance off, wait about 2 minutes, then turn it back on.
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.
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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Browse all Bosch error codes: Bosch Error Codes
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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