What does the Bosch dishwasher E6001 error code mean?

E6001 indicates a fault in the dishwasher's control board or its communication system. It can be triggered by a transient power event such as a surge or brief outage, or by a hardware-level failure on the board itself. A 30-second breaker reset clears the code in cases where a power fluctuation is the cause. If E6001 returns after a reset, the control board requires professional diagnosis.

What does the Bosch dishwasher E6002 error code mean?

E6002 indicates a water inlet fault — the dishwasher is not receiving water correctly. The most common causes are a kinked or damaged inlet hose, a blocked mesh filter screen at the inlet connection, or a closed water supply valve. If these checks do not resolve the code, the water inlet valve itself has likely failed and needs replacement.

Can I fix E6001 or E6002 myself?

A breaker reset is a safe first step for both codes and costs nothing. For E6002, checking the inlet hose for kinks and cleaning the mesh filter screen at the inlet connection are straightforward DIY steps that resolve the error in many cases. If either code persists after these steps, professional repair is required — control board replacement for E6001 and inlet valve replacement for E6002.

How much does a Bosch dishwasher E6001 or E6002 repair cost?

If a breaker reset or hose inspection resolves the fault, the fix costs nothing. Control board replacement for a persistent E6001 in the Boston area typically runs $220–$450 parts and labor. Water inlet valve replacement for E6002 typically runs $120–$250 parts and labor, depending on the model series.

Why does E6002 return even after checking the inlet hose?

If E6002 persists after confirming the hose is undamaged, fully connected, and free of kinks, the water inlet valve itself has most likely failed. The valve controls water flow into the tub and can fail mechanically or electrically over time. A technician can test the valve directly with a multimeter to confirm the fault before replacing it.

E6001
E6002

Bosch · Dishwasher · Error Code

Bosch Dishwasher E6001 / E6002 Error Codes — Control Board / Water Inlet Fault

Technician Recommended Also shown as: E-6001 E-6002 6001 6002

Quick Answer

E6001 signals an internal control board fault — the board's self-diagnostic routine detected an error it cannot recover from on its own. E6002 points to a water inlet problem: a kinked or damaged supply hose, closed shutoff valve, or insufficient water pressure reaching the machine. Start with a 30-second power reset at the circuit breaker. If E6001 persists after the reset, a technician visit is required. If E6002 returns, check the inlet hose and supply valve before calling for service.

E6001

Control Board Internal Fault

The main control board (PCB) has detected an internal hardware or software error during its self-test. A power reset may clear a temporary glitch; persistent E6001 almost always requires control board diagnosis or replacement.

E6002

Water Inlet / Supply Issue

The dishwasher is not receiving adequate water. The supply hose may be kinked, damaged, or blocked; the shutoff valve may be closed; or incoming water pressure is below the required 10 l/min. Often fixable without a technician.

Time

15 min – 2 hrs

Difficulty

Easy–Advanced

Tools

None – Multimeter

DIY Cost

Free – $15

What These Error Codes Mean

Bosch dishwashers run a continuous self-diagnostic routine that monitors every major component. When the control board detects a condition it cannot handle internally, it halts the cycle and displays a numeric fault code so the source of the problem can be traced quickly.

E6001 is a control board fault code. The PCB (printed circuit board) has encountered an internal hardware or firmware error — a failed relay, a corrupted memory state, or a component that is not responding to the board's commands. Because this code is generated by the board itself reporting its own failure, simply restarting a program won't fix it if there is a genuine hardware fault. A 30-second power cut at the breaker allows all capacitors to discharge fully and can clear a temporary glitch; if the code returns immediately, the board requires professional diagnosis.

E6002 is a water supply fault. The dishwasher's flow sensor is not detecting water entering the machine at the expected rate — Bosch specifies a minimum flow of 10 l/min. The most common causes are a kinked or pinched inlet hose under the counter, a partially closed supply valve, or low household water pressure. These are straightforward to check yourself before calling a technician.

Common Causes — Most Likely First

Temporary control board glitch (power spike or firmware state error). A brief voltage fluctuation or corrupted operating state can trigger E6001 without any hardware damage. A full power reset clears it in many cases. E6001 Very common

Kinked or pinched inlet supply hose. The hose behind or beneath the dishwasher has been pushed against the cabinet wall or a kink has formed, restricting water flow below the 10 l/min threshold required. E6002 Very common

Closed or partially closed water supply valve. The shutoff valve under the sink was not fully reopened after maintenance or plumbing work, cutting off adequate flow to the dishwasher. E6002 Common

Low household water pressure. A pressure drop in the home's supply — due to simultaneous high water usage, a partially closed main valve, or a pressure regulator issue — means the dishwasher cannot fill fast enough. E6002 Occasional

Damaged or blocked inlet hose / clogged inlet filter screen. The supply hose is physically cracked or the small mesh filter screen at the hose-to-valve connection has accumulated sediment and is restricting flow. E6002 Occasional

Failed water inlet valve. The solenoid-operated valve that controls water entry into the dishwasher has failed in the closed position, preventing any water from entering regardless of supply pressure. E6002 Less common — needs technician

Failed control board relay or damaged PCB component. A relay, capacitor, or circuit trace on the main control board has physically failed. This is the cause when E6001 persists through repeated power resets and no other fault is found. E6001 Less common — needs technician

How to Fix E6001 / E6002 — Step by Step

Perform a full power reset at the circuit breaker

This step applies to both E6001 and E6002. Switch off the dishwasher and go to your breaker panel — flip the dishwasher's dedicated circuit breaker to the OFF position. Wait a full 30 seconds (not just 5–10) so the capacitors on the control board discharge completely. Flip the breaker back on, then power up the dishwasher and attempt a short cycle.

If E6001 clears after this reset and the dishwasher runs normally, a temporary firmware glitch was the cause. Monitor for recurrence. If E6001 returns immediately, proceed to the technician step — the board has a persistent hardware fault. For E6002, continue to the supply-side checks below regardless.

Confirm the water supply valve is fully open (E6002)

Open the cabinet under the sink and locate the hot-water shutoff valve supplying the dishwasher — it is typically on the left or center back wall. Turn it counterclockwise until it stops. A ball valve should be parallel to the pipe; a gate valve should be fully rotated open. Even a quarter-turn of restriction can reduce flow below the 10 l/min Bosch requires.

Inspect the inlet hose for kinks, damage, or blockage (E6002)

Carefully pull the dishwasher out slightly or reach behind it to trace the full length of the braided supply hose from the valve to the dishwasher's inlet. Straighten any kink or bend. Look for cracks, cuts, or areas where the hose has been crushed against the cabinet. At the connection point where the hose meets the dishwasher's inlet valve, there is a small mesh filter screen — remove the hose (have a towel ready) and inspect the screen for sediment buildup. Rinse it under tap water if clogged.

A kinked or partially blocked hose is the single most common cause of E6002 and takes two minutes to check and correct.

Check for low household water pressure (E6002)

Turn on a nearby faucet while the dishwasher is idle — if the flow is noticeably low, the problem is at the household supply level, not the dishwasher itself. Check whether the main supply valve is fully open, whether a pressure-reducing valve (PRV) has failed, or whether another appliance is consuming high flow simultaneously. The dishwasher requires a minimum flow rate of 10 litres per minute.

Run a test cycle and observe

After completing the supply-side checks (Steps 2–4), restore power, ensure the supply valve is open, and run a rinse or quick wash cycle. Stay nearby during the first few minutes to confirm the dishwasher begins filling normally. If the cycle completes without E6002 returning, the issue is resolved.

If E6002 persists — test or replace the inlet valve

If the hose is clear, the valve is open, and pressure is adequate but E6002 still appears, the water inlet solenoid valve itself has likely failed and is not opening when commanded. This valve is located at the bottom-rear of the dishwasher. A technician can test it with a multimeter and replace it if defective. DIY replacement is possible on many models but requires pulling the unit and working with electrical connections.

If E6001 persists — book a technician for control board diagnosis

A persistent E6001 after a full power reset indicates a hardware-level fault on the main control board — a failed relay, damaged capacitor, or burned circuit trace. In some cases the board can be repaired; in others it must be replaced. Bosch control boards typically require programming after replacement, which requires a certified technician with Bosch diagnostic software. This is not a DIY repair.

Note: Before replacing the board, ask the technician to also check the ribbon cable and wiring harness connections between the main PCB and the user interface board — a loose connector can mimic a board failure and costs nothing to reseat.

When to Call a Technician

Some E6001 / E6002 situations go beyond what can be fixed at home. Book a professional repair if:

E6001 returns immediately after a full 30-second circuit breaker reset
E6001 returns repeatedly across multiple wash cycles even after clearing
E6002 persists after confirming the hose is clear and the supply valve is fully open
The water inlet valve tests faulty with a multimeter or you are not comfortable replacing it
Household water pressure is normal but the dishwasher still shows E6002
You notice any signs of water damage, burning smell, or scorch marks near the control panel or board

Repair Cost Expectations

If You Fix It Yourself

Free – $15

A power reset and hose check cost nothing. Replacing a clogged inlet filter screen is free. A new inlet valve (E6002, DIY install) runs $10–$40 as a part. Control board replacement is not recommended as a DIY repair.

Professional Repair

$120–$400

Water inlet valve replacement typically runs $120–$200 including labor. Control board diagnosis and replacement (E6001) ranges from $200–$400 depending on the board cost and programming time required.

Still Getting E6001 or E6002? We'll Diagnose Your Bosch.

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Frequently Asked Questions

What is the difference between E6001 and E6002 on a Bosch dishwasher?

E6001 is a control board fault — the dishwasher's main PCB has detected an internal error it cannot self-correct. E6002 is a water supply fault — the machine is not receiving enough water. They require different troubleshooting paths: E6001 starts with a power reset and often needs a technician; E6002 starts with checking the inlet hose and supply valve, which is usually a quick DIY fix.

Will unplugging the dishwasher fix E6001?

It may, if the cause was a temporary glitch rather than a hardware failure. However, Bosch recommends a full 30-second reset at the circuit breaker rather than simply unplugging, to ensure the board's capacitors fully discharge. If E6001 returns after a proper reset, the control board has a persistent fault that requires professional diagnosis.

How do I check if low water pressure is causing E6002?

Turn on the kitchen cold tap fully while the dishwasher is idle. If flow at the tap is strong and normal, household pressure is not the issue — focus on the inlet hose and shutoff valve instead. If tap pressure is also low, check whether the main supply valve is fully open or whether a pressure-reducing valve (PRV) has failed. The dishwasher needs a minimum flow rate of 10 litres per minute.

Can E6001 be caused by a water leak damaging the control board?

Yes, this is a known failure path. If the dishwasher has previously had a water leak (particularly from the door seal or a hose above the control panel area), moisture can reach and damage the PCB, causing persistent E6001 codes. A technician will look for signs of corrosion or water damage on the board when diagnosing this fault.

How much does a Bosch dishwasher control board cost to replace?

The control board part itself typically runs $100–$250 depending on the model. Because Bosch locks programming to the specific unit, the board must be configured by a certified technician with Bosch diagnostic software after installation — meaning total repair cost including labor usually falls in the $200–$400 range.