Error Code: E27 Difficulty: Easy
Problem: Low voltage in the power supply.
How to Fix E27 Error (Step-by-Step)
- Locate your home’s main electrical panel and check if the circuit breaker dedicated to the dishwasher has tripped. If it is in the middle or off position, flip it fully off and then back on to reset it.
- Ensure the dishwasher’s power cord is pushed all the way into the wall outlet. Sometimes vibrations can cause it to become loose.
- Examine the entire length of the power cord for any visible signs of damage, such as cuts, burns, or frayed wires. A damaged cord can cause voltage issues.
- To verify the outlet is working correctly, unplug the dishwasher and plug in a small, known-working appliance like a lamp or a phone charger.
- Dishwashers should be on a dedicated circuit. Remove any extension cords or power strips and plug the appliance directly into the wall outlet.
- If these steps do not resolve the issue, the problem may be with your home’s wiring, which requires a professional electrician to diagnose and repair.
- 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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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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