Bosch Dishwasher Error Code E01: Causes, Fixes & Reset Guide

If your Bosch dishwasher displays the E01 error code, you’re likely dealing with a water heating or control board issue. This error can stop the dishwasher from working right. It may cause incomplete wash cycles, wet dishes, and even long-term damage to its parts.

This guide will help you quickly troubleshoot and fix the E01 error code. It’s useful for both DIYers and those who need a technician’s help. You can fix your dishwasher and save money on replacements by following the right reset and repair steps.

Bosch Dishwasher Error Code E01?

The E01 error code usually means there’s a problem with the heat pump motor circuit at the main control board. This can cause issues with heating and water supply. If your dishwasher doesn’t get enough heat, it can’t clean dishes well. This can also hurt drying performance.

The following are the primary reasons why you may encounter this error:

1. Faulty Heating Element or Heat Pump – If the heat pump motor circuit is malfunctioning, the dishwasher won’t heat the water properly​.
2. Main Control Board Failure – A faulty or burnt control module stops the dishwasher from powering the heating system.
3. Low Water Pressure – If the water flow is too low, it can cause an error. Bosch dishwashers need a certain water pressure level to work properly.
4. Clogged Water Inlet Valve – A blocked inlet valve limits water flow. This causes an incomplete wash cycle.
5. Electrical Malfunction – Short circuits or damaged wiring between the heat pump and control board can cause this error.

How to Fix Bosch Dishwasher Error Code E01

Now that we understand the causes, let’s go through the best troubleshooting steps to fix the issue.

Step 1: Perform a Basic Reset

Before taking apart your dishwasher, try resetting it to clear any temporary glitches.

How to Reset Bosch Dishwasher E01 Code:

1. Turn off the power at the breaker or unplug the unit.
2. Wait for at least 5-10 minutes to allow the control board to reset.
3. Turn the dishwasher back on and run a test cycle.

If the error disappears, the issue was likely a temporary software glitch. If not, proceed to the next step.

Step 2: Check the Water Inlet System

A faulty water inlet valve can disrupt the dishwasher’s ability to fill with water, triggering the E01 error.

How to Inspect and Replace the Water Inlet Valve:

1. Turn off the dishwasher and disconnect the water supply.
2. Locate the water inlet valve, typically found at the bottom of the appliance behind the front panel.
3. Check for blockages – remove debris or hard water deposits.
4. Test the valve with a multimeter to ensure proper electrical continuity.
5. Replace the valve if it fails the test.

Step 3: Inspect the Heating Element & Heat Pump

A faulty heating system is a major reason behind the E01 error code.

To check the heating element:

1. Unplug the dishwasher and remove the lower access panel.
2. Locate the heating element (usually at the bottom of the tub).
3. Use a multimeter to test for continuity.
4. If there’s no continuity, the heating element is defective and should be replaced.

Step 4: Test the Control Board

If the E01 error persists, the main control module (PCB) may be damaged.

How to Check and Replace the Control Module:

1. Unplug the dishwasher and remove the front panel.
2. Inspect the control board for burnt components, loose wires, or visible damage.
3. If any burnt marks or damaged capacitors are present, the control board needs replacement.
4. Order a replacement board compatible with your dishwasher model.
5. Install the new control module and reconnect all wires properly.

Step 5: Replace the Drain Pump (If Needed)

Some Bosch users found that a faulty drain pump can also cause Error Code E01.

How to replace the drain pump:

1. Disconnect the power and remove the dishwasher’s lower panel.
2. Locate the drain pump assembly.
3. Check if the impeller is clogged or damaged.
4. If faulty, install a new drain pump (typically around $40-$80)​.

Bosch Dishwasher Error Code E01 Reset

If you’ve tried all troubleshooting steps and the E01 error code is still there, do this reset method:

1. Press and hold the Start button for 3–5 seconds to force a reset.
2. Turn off the dishwasher and unplug it for at least 4 hours.
3. Reconnect the power and start a test cycle.

If the error keeps happening, you might need a technician to check the control board and wiring inside.

FAQs

What does E01 mean on a Bosch dishwasher?

The E01 error code on a Bosch dishwasher means there’s a problem with the heat pump motor circuit or the control board.

How do I fix an E01 error on my dishwasher?

To fix E01 on a Bosch dishwasher, follow these steps: reset the unit. Then, check the water inlet valve, the heating element, and the control board.

What does 0 01 mean on a Bosch dishwasher?

The 0 01 error on a Bosch dishwasher is often a water inlet problem caused by low pressure or a blocked valve.

What does E01 mean on a Bosch washing machine?

The E01 error code on a Bosch washing machine means there is a drainage problem, a blocked filter, or a pump failure.

How much does it cost to fix the E01 error?

• Control board replacement: $150–$250.
• Water inlet valve: $30–$80.
• Drain pump replacement: $50–$100.
• Professional repair service: $150–$300.

Final Thoughts: Should You Repair or Replace?

The Bosch dishwasher E01 error often points to problems with the water inlet, a broken control module, or a blocked drain pump. If your dishwasher is less than 5 years old, it is usually worth repairing. But, if the cost of repair exceeds 50% of a new dishwasher’s price, consider replacing the appliance.

This guide helps you fix the E01 error on your own. You’ll save money on expensive technician visits.