What does the E07 error code mean on a Bosch dishwasher?

The E07 error code on a Bosch dishwasher indicates a fault with the drying fan or ventilation system. Bosch dishwashers use an active drying fan to circulate warm air and assist with the condensation drying process. When the fan motor fails, runs incorrectly, or is obstructed, the dishwasher triggers E07. This error typically results in dishes coming out wet at the end of the cycle even though the wash itself may have completed normally.

What causes the E07 error on a Bosch dishwasher?

The most common causes of the E07 error include a burned-out or seized drying fan motor that has stopped working, a fan blade blocked by debris or food particles preventing it from spinning freely, a faulty fan speed sensor that is reporting incorrect data to the control board, or a damaged wiring connection between the fan assembly and the main control board. In some cases a temporary software glitch can also trigger E07 and may be resolved with a hard reset.

How does the E07 error affect my Bosch dishwasher?

The E07 error primarily affects the drying phase of the wash cycle. The dishwasher will still fill, wash, and drain normally in most cases, but without a functioning drying fan the condensation drying process is disrupted, leaving dishes wet or damp at the end of the cycle. If left unrepaired, continued operation without proper ventilation can also cause excess moisture buildup inside the appliance over time.

How do I fix the E07 error on my Bosch dishwasher?

Start by performing a hard reset: disconnect the dishwasher from power for 5 minutes and restart. If the error returns, check the interior of the dishwasher for any debris near the vent or fan area that may be obstructing airflow. Ensure the dishwasher is not overloaded, as overcrowding can restrict air circulation during drying. If these basic steps do not resolve the error, the drying fan motor, fan speed sensor, or wiring will need to be professionally inspected and replaced.

Can I fix the Bosch E07 error myself?

A hard reset and checking for visible obstructions near the vent area can be done at home. However, accessing and replacing the drying fan motor or fan speed sensor requires removing internal panels and working near electrical components inside the dishwasher. This type of repair is best carried out by a certified appliance repair technician to ensure safety and accuracy.

What is the difference between E07 and E06 on a Bosch dishwasher?

E06 is a door latch or door lock safety fault that prevents the dishwasher from operating at all until the door closure issue is resolved. E07 is a drying fan or ventilation fault that affects only the drying phase of the cycle. With E06 the dishwasher will not run. With E07 the dishwasher will typically complete the wash and drain cycle but dishes will come out wet due to the failed drying system.

Does Promix Appliance Repair fix Bosch dishwasher E07 errors in Boston?

Yes. Promix Appliance Repair provides same-day Bosch dishwasher repair services throughout Boston, Newton, Needham, Brookline, Wellesley, and surrounding areas. Our certified technicians are experienced in diagnosing and replacing faulty drying fan motors, fan speed sensors, and ventilation components on all Bosch dishwasher models. Call (781) 666-9565 to book a same-day appointment.

E07

Bosch · Dishwasher · Error Code

Bosch Dishwasher E07 Error Code — Turbine Flow Sensor Problem

DIY — Check First Also shown as: E 07 07 E7

Quick Answer

The E07 error code means the turbine flow sensor inside the wash circuit is not detecting water movement — the control board sent water through the spray arms but the turbine impeller did not spin as expected. The most common cause is a blocked filter, a jammed spray arm, or a foreign object lodged in the turbine impeller. Cleaning the filter and spray arms resolves E07 in most cases with no parts and no tools. If the turbine itself has failed, a technician is needed.

Time

15–25 min

Difficulty

Easy

Tools

None needed

DIY Cost

Free

What the E07 Code Means

Bosch dishwashers use a small turbine — essentially a plastic impeller on a pin — mounted inside the wash water circuit. As water flows through the spray arm circuit during a wash cycle, it passes through the turbine housing and spins the impeller. A Hall-effect sensor counts the rotations and reports them to the control board as a flow rate. The board uses this data to verify that water is actually circulating through the spray arms, not just sitting in the sump.

E07 appears when the control board detects that the turbine impeller is not spinning at the expected rate during a wash cycle — or has stopped entirely. From the board's perspective, water is not flowing through the circuit correctly, and the cycle cannot continue safely.

The important distinction is that E07 is a flow problem, not a pump problem. The wash pump may be running perfectly, but if something downstream is blocking or diverting the flow — a clogged filter, a blocked spray arm, a jammed turbine impeller — the turbine sees nothing and reports the fault. This is why the DIY checks below start with the filter and spray arms rather than assuming the turbine itself has failed.

E07 in the Water Monitoring Code Family

E04

Flow meter sensor

Measures total water volume entering the machine on fill. Fault means fill volume readings are incorrect.

E06

Water level sensor

Monitors water depth in the tub via pressure chamber. Fault means level readings are stuck or absent.

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E07

Turbine flow sensor

Counts spray arm circuit flow rate during wash. Fault means the turbine impeller is not spinning — blocked or failed.

Common Causes — Most Likely First

Clogged filter assembly reducing flow to the spray circuit. A heavily soiled filter restricts water reaching the wash pump and spray arms. Reduced flow falls below the threshold the turbine needs to spin, triggering E07 even though the turbine itself is fine. Very common

Blocked or stuck spray arm. A spray arm has a clogged nozzle or is physically jammed — unable to rotate — reducing or misdirecting water flow away from the turbine housing. A toothpick, glass shard, or food particle in the arm hub is a frequent culprit. Common

Foreign object jamming the turbine impeller. A small piece of broken glass, a cherry stone, or a food particle has found its way into the turbine housing and is physically stopping the impeller from rotating. The pump runs but the turbine reports zero flow. Common

Worn or failed turbine impeller / Hall-effect sensor. The plastic impeller blades have worn smooth over years of use and no longer spin reliably in the flow. Or the Hall-effect sensor that counts rotations has failed. The turbine assembly needs replacement. Occasional — older machines

Wash pump running at reduced capacity. The wash pump's impeller is partially blocked or the motor is weakening, reducing water pressure below the level needed to spin the turbine. E07 appears as a secondary effect of a developing pump fault. Occasional

How to Fix the E07 Error — Step by Step

Turn off and unplug the dishwasher

Switch the machine off and unplug it from the wall outlet or trip its circuit breaker. This clears the active fault and makes it safe to access the tub interior.

Remove and clean the filter assembly thoroughly

Remove the lower rack. Twist the cylindrical filter counter-clockwise and lift it out along with the flat mesh filter below it. Rinse both under running warm water, using a soft brush to remove any grease or food buildup from the mesh. Hold the flat filter up to light — every hole should be clear. Reinstall both once clean.

This is the single most effective DIY step. A filter so clogged that water pressure drops significantly is the most common cause of E07 in regular household use. Many E07 cases clear with filter cleaning alone.

Inspect and clean the spray arms

Remove the lower spray arm by pulling it upward off its center hub (some models unscrew counter-clockwise). Hold it up to the light and look through each nozzle — they should all be clear. Use a toothpick to clear any blocked holes. Check that the hub opening at the center is not cracked or obstructed. Repeat for the upper spray arm by unscrewing its center nut. Run both under warm water and replace.

Check arm rotation: After reinstalling each spray arm, spin it by hand. It should rotate freely with minimal resistance. A spray arm that catches or stops is physically obstructed at the hub — check for a food particle or small object caught in the bearing.

Check for a foreign object at the turbine inlet

With both filters removed and the spray arms inspected, look down into the sump area with a flashlight. The turbine housing is a small cylindrical or oval plastic component usually visible near the sump opening. Look for any visible debris — glass fragments, seeds, or food particles — lodged in or around the turbine inlet. Remove carefully with needle-nose tweezers or your fingers. Do not force anything.

Can you spin it? If you can reach the turbine impeller through the sump opening, try spinning it gently with a fingertip. A healthy impeller should spin freely. A jammed impeller will feel stiff or will not move — that confirms a foreign object or worn bearing.

Reinstall everything and run a full cycle

Reinstall the filters and lower rack. Plug the dishwasher back in and run a complete wash cycle — not a quick rinse, since E07 typically appears once the main wash pump reaches full pressure. If the cycle completes without E07, the blockage has been cleared.

If E07 returns — hard reset then book service

Unplug for a full 60 seconds, plug back in, and run another cycle. If E07 appears again despite clean filters and clear spray arms, the turbine impeller or its Hall-effect sensor has failed, or the wash pump is running at reduced capacity. Both require professional diagnosis and component access that is not reachable from the tub floor.

When to Call a Technician

Filter and spray arm cleaning resolves E07 in most cases. Book service if:

E07 returns after thoroughly cleaning the filters and spray arms and running a full cycle
The turbine impeller feels stiff or will not spin freely when tested by hand through the sump opening
You hear the wash pump running but water pressure in the tub seems low — dishes are poorly rinsed even when the cycle completes
E07 appears alongside E20 or E21 (wash pump fault codes) — both together suggest the pump itself is the root cause
You found and removed a foreign object from the turbine but E07 still returns — the impeller blades may be damaged

Repair Cost Expectations

Filter & Spray Arm Clean (DIY)

Free

Cleaning the filter and spray arms costs nothing and takes 15–20 minutes. Resolves E07 in the majority of cases — especially on machines that haven't had a filter clean in several months.

Turbine Assembly Replacement

$130–$230

Typical Boston-area cost if the turbine impeller or its Hall-effect sensor has failed — parts and labor. The turbine assembly is $30–$70; the rest is diagnostic time and labor to access and replace it in the sump.

E07 Still Showing After Cleaning? We'll Trace It.

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Frequently Asked Questions

What is the turbine flow sensor and where is it located?

The turbine flow sensor is a small plastic assembly mounted in the wash water circuit — usually inside the sump area near the wash pump outlet. It contains a lightweight impeller (a small spinning wheel with blades) and a Hall-effect sensor that counts how fast the impeller rotates. As pressurized water flows through the spray arm circuit, it passes the turbine and spins the impeller. The rotation rate tells the control board the actual flow speed through the circuit — confirming that water is reaching the spray arms rather than recirculating in the sump.

Can I use my dishwasher with E07 active?

The dishwasher will halt the cycle when E07 is detected because the control board cannot verify that water is reaching the spray arms. Even if the machine appears to complete a cycle, dishes will likely be poorly washed since circulation may be reduced or absent. Clear the fault before relying on the dishwasher for regular use.

What is the difference between E07 and E04?

E04 relates to the flow meter sensor on the water inlet — it measures how much cold water enters the machine during the fill phase at the start of a cycle. E07 relates to the turbine sensor inside the wash circuit — it measures how fast water is moving through the spray arm loop during the wash itself. E04 is a fill-phase fault; E07 is a wash-phase fault. Both involve flow sensing but in completely different parts of the water system.

How often should I clean the filter to prevent E07?

Bosch recommends cleaning the filter monthly under normal household use. In households that load heavily soiled dishes or run the machine daily, every two to three weeks is better. A clean filter ensures adequate flow to the spray arm circuit and is the single most effective step for preventing both E07 and E22. The whole process takes under five minutes once you know where the filter is.

How much does turbine flow sensor replacement cost?

In the Boston area, replacing the turbine assembly typically runs $130–$230 parts and labor. The turbine part itself is $30–$70 depending on the Bosch model series; the rest is diagnostic time and labor to access it in the sump. If the cause is instead the wash pump running at reduced capacity, costs may be higher — a technician's diagnostic visit will identify which component is at fault before any parts are ordered.