Bosch Dishwasher error code
Bosch Dishwasher Error E02
Error code requiring model-specific diagnosis
Main control board relay fault.
Try these first
Start here before buying a part or taking the appliance apart.
- 1Check 1
Reset the dishwasher by turning off power at the circuit breaker for at least 30 seconds.
- 2Check 2
Disconnect power and water, then access and test the thermistor with a multimeter.
- 3Check 3
Inspect the heating element for any visible damage.
A quick explanation
What does E02 mean?
Main control board relay fault.
The full model number matters. Appliances can show the same code while using different wiring, sensors, or control parts.
The answer you came for
How to fix Bosch dishwasher error E02
- 1
Step 1
1. Turn off the power to the dishwasher at the circuit breaker. 2. Access the bottom of the dishwasher by removing the lower access panel. 3. The temperature sensor (thermistor) is located on the sump assembly. Disconnect the wires from the sensor. 4. Rotate the sensor to release it and pull it out. Install the new sensor and reconnect the wires. 5. If replacing the control board, remove the outer door panel by taking out the screws around the inner door. 6. Disconnect the wire harnesses from the control board, remove the board, and install the new one, ensuring all connections are secure. 7. Reassemble the dishwasher, restore power, and check if the error is cleared.
Read the additional checks from the current guide
How to Fix E02 Error (Step-by-Step) Turn off the power to the dishwasher at the circuit breaker. Access the bottom of the dishwasher by removing the lower access panel. The temperature sensor (thermistor) is located on the sump assembly. Disconnect the wires from the sensor. Rotate the sensor to release it and pull it out. Install the new sensor and reconnect the wires. If replacing the control board, remove the outer door panel by taking out the screws around the inner door. Disconnect the wire harnesses from the control board, remove the board, and install the new one, ensuring all connections are secure. Reassemble the dishwasher, restore power, and check if the error is cleared. Turn the appliance off, wait about 2 minutes, then turn it back on. Next Steps and Parts Verified Compatible Alternatives: Temperature Sensor (Thermistor) 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. Bosch dishwasher water inlet valve Common replacement category: Water inlet valve Fit note: Exact OEM part number varies by full Bosch dishwasher model number. Confirm compatibility before buying. Confidence: MediumThis category can be relevant for fill and water-supply faults after the tap, hose, and inlet screen are checked. Search Amazon for Bosch dishwasher water inlet valve Bosch dishwasher drain pump Common replacement category: Drain pump Fit note: Exact OEM part number varies by full Bosch dishwasher model number. Confirm compatibility before buying. Confidence: MediumThis category can be relevant for drain and standing-water symptoms after the filter, sump, and hose are checked. Search Amazon for Bosch dishwasher drain pump Bosch dishwasher circulation pump Common replacement category: Circulation pump / wash motor Fit note: Exact OEM part number varies by full Bosch dishwasher model number. Confirm compatibility before buying. Confidence: MediumThis category can be relevant for wash, spray-arm, and circulation symptoms after filters and spray arms are checked. Search Amazon for Bosch dishwasher circulation pump Before ordering: match the part to the complete Bosch dishwasher model number on the appliance tag.
What to Check Next on This Bosch Dishwasher Bosch Dishwasher Error E02: Use the code, light, or symbol as the starting clue, then confirm what the dishwasher actually does before ordering parts. 1. Turn power off before opening panels, reaching into the sump, touching wiring, or checking the pump, heater, valve, sensor, latch, or control area. 2. Confirm whether the display is a normal cycle/status symbol or a recurring fault that interrupts filling, washing, draining, drying, locking, or control response. 3. Start with the heat and temperature path: water circulation, heater circuit, NTC sensor, wiring, and control output. 4. Clean the filter and sump, check spray-arm movement, verify water supply, inspect the drain hose and sink connection, and correct any visible blockage before replacing parts. 5. Run a short test cycle and watch where it fails; the exact stage matters more than the displayed word or symbol by itself. 6. Replace a part only after the same symptom repeats and the model-specific checks point to that part category. Match any replacement to the complete Bosch model number on the door tag. If the issue returns after these checks, match replacement parts to the complete Bosch dishwasher model number from the door tag. The same display clue can point to different components depending on the exact model and when the failure appears. Still Not Working? If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure. Get the Dishwasher Error Code Guide: https://appliancewhisperer.gumroad.com/l/fdcge
What may be causing it?
- Faulty temperature sensor/thermistor
- Defective heating element
- Malfunctioning main control board
These are possibilities to investigate, not proof that one part has failed.
Recommended part
Recommended part for this error code
Replacement part
OEM candidate: 00165281
Price noted in the current guide: $170-$400
Why this part is shown: It is associated with Bosch Dishwasher error E02 in the current guide. The error code alone does not prove this part has failed.
Compatibility varies by model. Confirm that the Amazon listing includes your complete dishwasher model number before ordering.
You can open the recommendation now. Check model compatibility on the Amazon page before purchasing.
Affiliate disclosure: qualifying purchases may earn this site a commission at no additional cost to you.Replacement options
Ready to replace your dishwasher?
If repairing this dishwasher no longer feels worthwhile, compare three replacement paths below.
Why shop your replacement on Amazon?
-
Fast, free delivery
Prime members can get fast, free delivery on eligible items.
-
Convenient delivery options
Select large appliances may offer scheduled or Room of Choice delivery.
-
Haul-away options
Haul-away may be available for select appliances and delivery areas.
-
Installation help
Installation or assembly may be available on select items.
Delivery and service options, fees, and availability vary by item, seller, and delivery ZIP code. Confirm available services at Amazon checkout.
Value
$0-$499
Budget-friendly dishwashers in the $0-$499 range.
Shop Value Options on AmazonBest Overall
$500-$899
Balanced dishwashers in the $500-$899 range.
Shop Best Overall Options on AmazonPremium
$900-$2,000
Higher-end dishwashers in the $900-$2,000 range.
Shop Premium Options on AmazonMake the money decision
Repair or replace calculator
Use the age and total repair estimate to get a simple comparison. This is guidance, not a guarantee.