What does the E2030 error code mean on a Bosch dishwasher?

The E2030 error code on a Bosch dishwasher indicates that the AquaStop flood protection system has been activated. Water has leaked internally and accumulated in the base tray beneath the wash chamber, causing the float switch to rise and trigger the E2030 fault. The dishwasher immediately stops water intake to prevent overflow and potential flooding of surrounding cabinetry and flooring. This is one of the more serious Bosch error codes and requires prompt attention.

What is the AquaStop system on a Bosch dishwasher?

The AquaStop system is Bosch's built-in flood protection technology. It consists of a double-walled inlet hose with an integrated solenoid valve and a float switch located in the base tray of the dishwasher. If water leaks internally and collects in the base tray, the float rises and signals the AquaStop solenoid to shut off the water supply immediately. This system is designed to prevent water damage even if an internal leak occurs while the dishwasher is unattended.

What causes the E2030 error on a Bosch dishwasher?

Common causes of the E2030 error include a worn or damaged door gasket or seal allowing water to escape during the cycle, a cracked or loose internal hose connection inside the dishwasher, a faulty water inlet valve that allows excess water to enter the tub, an overfilled or leaking water softener unit, a damaged pump housing or sump assembly causing internal leakage, or excessive detergent use producing too much foam that overflows into the base tray.

How do I fix the E2030 error on my Bosch dishwasher?

First, turn off the dishwasher and disconnect it from power immediately. Carefully tilt the dishwasher forward slightly to allow any water collected in the base tray to drain out through the front. Once the base tray is empty the float switch will lower and the AquaStop system will reset. After drying the base tray thoroughly, inspect the door gasket, internal hoses, and visible connections for signs of leakage. If you used too much detergent, run a rinse-only cycle with no detergent to clear foam buildup. If the E2030 error returns after reset, the source of the internal leak must be identified and repaired by a certified appliance repair technician before the dishwasher is used again.

Is the E2030 error dangerous on a Bosch dishwasher?

Yes, the E2030 error should be treated as urgent. It indicates that water is actively leaking inside the dishwasher and has reached the base tray. If left unaddressed, continued use can cause significant water damage to surrounding kitchen cabinetry, flooring, and subfloor materials. The AquaStop system has already stopped the immediate threat, but the underlying cause of the leak must be identified and repaired before the dishwasher is operated again.

How is E2030 different from E10, E20, and E24 on a Bosch dishwasher?

E10 is a water supply failure where the dishwasher cannot take in enough water. E20 and E24 are drainage failures where the dishwasher cannot expel water after the cycle. E2030 is a flood protection fault where water has leaked internally into the base tray of the appliance, triggering the AquaStop safety system. Unlike E10, E20, and E24 which are operational faults, E2030 indicates an active internal water leak and is the most urgent of the four error types.

Does Promix Appliance Repair fix Bosch dishwasher E2030 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 identifying and repairing internal leaks, replacing door gaskets, inlet valves, hose connections, and resetting AquaStop systems on all Bosch dishwasher models. Call (781) 666-9565 to book a same-day appointment.

E07
E2030

Bosch · Dishwasher · Error Code

Bosch Dishwasher E07 / E2030 Error Codes — Drying Fan Fault / System Electronics Fault

Technician Recommended Also shown as: E 07 E:07 E-2030

Quick Answer

E07 means Bosch has detected a fault in the drying system — specifically a defective Zeolite or Crystal Dry fan motor, per Bosch's official code definition. E2030 is a newer-platform electronics fault on HomeConnect/Series models where Bosch's published guidance is identical to several sibling codes: reset the breaker for 30 seconds, and call 1-800-944-2904 if it doesn't clear. For both codes, start with a breaker reset. For E07 specifically, checking for a fan obstruction and inspecting wiring to the fan motor are productive DIY steps before calling a technician. Fan motor replacement is the most common confirmed repair for E07, though it requires partial disassembly.

E07

Bosch's official definition

Zeolite / Crystal Dry fan motor is defective. The drying fan is not operating as expected — silent when it should run, running erratically, or failing to reach speed. Dishes come out wetter than normal. DIY checks: fan obstruction, wiring. Fan replacement often needed.

E2030

Bosch's official guidance

System electronics fault on newer HomeConnect-era dishwashers. Bosch publishes no component-level detail beyond "reset the breaker for 30 seconds; if not resolved, call 1-800-944-2904." Related to E2120 and E2130 in the same fault group.

Time

30 sec–2 hrs

Difficulty

Easy–Hard

Tools

Multimeter, Torx set

DIY Cost

Free–$120

What E07 and E2030 Mean

E07 — Zeolite / Crystal Dry fan motor fault. Bosch's official code definition is unambiguous: the drying fan motor is defective. The drying fan is a dedicated small motor that actively circulates air during the drying phase of a cycle. On standard Bosch models this is a condensation-drying system fan. On premium models equipped with Zeolite or Crystal Dry technology, this fan draws warm moist air from the tub through a chamber of zeolite mineral granules, which absorb moisture through a chemical reaction and release heat — a highly effective and energy-efficient drying method. When this fan stops, runs too slowly, or produces an incorrect current draw, the control board raises E07. The symptom is dishes that come out wetter than usual, combined with the cycle stopping or ending without completing the drying phase.

E07 is distinct from fill, drain, and heating codes. Cleaning the filter and checking the drain hose — the instinctive first steps for many dishwasher codes — will not fix E07. The fault is entirely in the drying system. Bosch's official first step is a 30-second breaker reset. If that doesn't clear the code, inspecting the fan for obstruction and testing the wiring are the next productive steps before a technician is called for fan motor replacement.

E2030 — System electronics fault. This is a newer-platform code used on Bosch's HomeConnect and latest-generation Series dishwashers. Bosch publishes no component-level detail for E2030 on their consumer pages — the guidance is the same as for several sibling codes (E2120, E2130): reset the breaker for 30 seconds and call 1-800-944-2904 if it doesn't clear. This brevity reflects the nature of the fault: E2030 sits in the same category as other board-level electronics faults that require trained technician diagnosis and, where a board is confirmed faulty, a factory-programmed replacement unit.

🪨

What is Zeolite / Crystal Dry technology?

Premium Bosch dishwashers (typically Series 6 and Series 8) use a chamber of natural zeolite mineral granules as a drying aid. During the drying phase, a fan draws moist warm air from the tub through the zeolite chamber. The minerals absorb moisture through a chemical reaction that generates additional heat, feeding warmer dry air back into the tub. This makes them exceptional at drying plastics — something condensation drying struggles with — and very energy-efficient. The fan is critical to this process: without it circulating air through the zeolite chamber, drying fails entirely and E07 is raised. Models without Zeolite technology can still display E07 if they have a standard condensation-drying fan that fails.

Common Causes — Most Likely First

Transient control board fault from a power event.Both codes A power outage, surge, or tripped breaker mid-cycle can leave the board's fan circuit monitoring in a fault state. A breaker reset — Bosch's official first step for both codes — clears this at no cost. Common first check

Debris or obstruction in the drying fan assembly.E07 Small objects — a food particle, label fragment, plastic piece, or even water accumulation — can jam or restrict the fan wheel, preventing it from spinning at the correct speed. The board detects the anomaly and raises E07. Occasional for E07

Loose, damaged, or corroded wiring to the fan motor.E07 A connector that has pulled loose or wiring that has been chafed can break the circuit between the control board and the fan motor, producing E07 without the motor itself having physically failed. Reseating loose connectors can resolve this without any parts. Occasional for E07

Water intrusion in the fan assembly.E07 A cracked spray arm tube or damaged internal hose can direct water toward the drying fan area. Water in or around the fan motor causes it to run erratically or fail, producing E07. If E07 appeared after another fault (E15, E16), check for water near the fan housing. Occasional

Failed drying fan motor.E07 primary The fan motor winding has burned out or the motor has seized. A multimeter test across the motor terminals showing OL (open line) or zero resistance confirms a failed motor. Fan motor replacement is the most common confirmed repair for E07 that persists after a reset. Most common confirmed E07 cause

Failed or clogged Zeolite chamber (Zeolite models only).E07 — Zeolite models On models with Zeolite technology, the mineral granules in the drying chamber can become saturated with moisture beyond their regeneration capacity, or the airflow channels in and out of the chamber can become restricted. This disrupts the fan's airflow load in a way the board detects as a fault. Less common

Control board electronics fault.Both codes The board's fan monitoring circuit has failed and is raising E07 or E2030 even when the fan and wiring are physically intact. This is the remaining suspect once the fan, wiring, and obstruction have all been ruled out. Board replacement requires a factory-programmed unit and a certified technician. Less common — needs technician

How to Fix E07 / E2030 — Step by Step

Reset the circuit breaker for at least 30 seconds

Both codes

Trip the dishwasher's circuit breaker and leave it off for at least 30 seconds — Bosch's published guidance for both E07 and E2030. A full 5 minutes is better, giving the control board time to fully discharge and clear any transient fault state. Restore power and run a complete wash cycle. If the code clears and the cycle completes with dry dishes, a power event was the cause.

E2030 specifically: Bosch's published guidance goes no further than this reset step on consumer pages. If E2030 returns after a proper reset, calling Bosch Customer Support at 1-800-944-2904 is the official next step — the fault requires technician-level diagnosis.

Listen for the drying fan during the drying phase

E07

Run a full cycle and pay attention during the last 20–30 minutes when the drying phase is active. In a quiet kitchen you should be able to hear a faint whirring sound from the fan. If the fan is completely silent when it should be running, the motor has likely stopped entirely. If it makes a grinding, rattling, or intermittent noise, debris or a mechanical fault is the probable cause. This listening test costs nothing and helps narrow the diagnosis.

Inspect the drying fan for obstructions

E07

With the dishwasher fully disconnected from power, the drying fan is typically located on the side or top of the inner tub area, accessible by removing the outer door panel or a side access panel depending on the model. On some models it can be partially inspected by removing the inner door liner. Once accessible, check the fan wheel for debris, check the air intake duct for blockages, and try to spin the fan wheel by hand — it should rotate freely with moderate resistance. Remove any debris you find.

Model variation matters: Fan placement differs significantly between Bosch models and generations. Consult your model's service documentation before disassembling panels. On many current Bosch models, the drying fan requires laying the machine on its side — a job that most homeowners find easier to hand to a technician.

Check wiring connections to the fan motor

E07

With the machine unpowered and the fan area accessible, trace the wiring harness from the fan motor back toward the control board. Check that all connectors are firmly seated and that the wire insulation shows no signs of chafing, heat damage, or corrosion at the terminal pins. Reseat any loose plugs. A loose connector between the board and the fan motor can produce E07 without either component having failed — and reconnecting it costs nothing.

Test the fan motor with a multimeter

E07

With the machine fully disconnected from power and the fan motor accessible, disconnect the motor's electrical terminals and measure resistance across them with a multimeter set to ohms. A healthy drying fan motor typically reads a specific value for your model (consult the tech sheet — commonly around 50–150 Ω for Zeolite fan motors, varying by model). A reading of OL (open line / infinite resistance) confirms the motor winding has burned out and the fan assembly needs replacement.

Note: Some sources cite approximately 122 Ω for the Zeolite fan on certain Bosch models — use your model's tech sheet for the precise target value. OL or zero (short) both indicate a failed motor.

Book a technician for fan motor replacement or board diagnosis

Both codes

If the fan motor has failed (confirmed by multimeter or by being completely silent when it should run), fan motor or Zeolite blower assembly replacement is required. On most current Bosch models this requires laying the machine on its side and removing multiple panels to reach the fan from below — a moderately complex job that a certified technician can complete efficiently. If the fan and wiring test fine but E07 persists, or if E2030 has not cleared after a reset, the control board is the remaining suspect and must be replaced with a factory-programmed unit by a Bosch-certified engineer.

When to Call a Technician

A breaker reset is the only DIY step for E2030. For E07, fan obstruction and wiring checks are productive DIY steps. Book a professional repair if:

E2030 returns after a full 5-minute breaker reset — call Bosch at 1-800-944-2904
E07 returns after a reset and the fan is confirmed silent during the drying phase
The fan motor tests as open circuit (OL) on a multimeter — replacement required
The fan area is not accessible without laying the machine on its side
Water intrusion is found near the fan assembly — source of the leak must also be identified and repaired
The fan and wiring test fine but E07 persists — board-level fault suspected
Dishes consistently come out wet despite the rest of the cycle completing normally

Repair Cost Expectations

If You Fix It Yourself

Free–$120

Breaker reset and wiring reseat cost nothing. A replacement drying fan or Zeolite blower assembly for most Bosch models runs $60–$120 as a DIY part, though access difficulty varies significantly by model.

Professional Repair

$150–$450

Typical range in the Boston area. Fan motor replacement: $150–$280. Control board replacement (E2030 or E07 board fault): $300–$450, parts and labor including Bosch factory programming.

Still Getting E07 or E2030? We'll Fix Your Bosch Dishwasher.

Same-day appointments across Boston. Certified Bosch technicians, common parts stocked on the truck, and a 90-day warranty on every repair.

Book Bosch Dishwasher Repair Call (781) 666-9565

Frequently Asked Questions

Can I still use the dishwasher when E07 is showing?

On some models E07 stops the cycle; on others the machine completes the wash but skips the Zeolite drying phase. Bosch's official guidance implies the machine should not be run while the error is active, as the drying system is not functioning correctly. If the machine stops mid-cycle you cannot continue the wash without clearing the code first. If it completes but dishes are wet, the wash portion is running — but running the machine with a known fan fault risks the motor getting worse or water accumulating in the fan area.

Does E07 mean my dishwasher won't clean dishes properly?

No — E07 is a drying-system fault, not a wash fault. The cleaning portion of the cycle (filling, washing, rinsing) is governed by separate components. If E07 appears and the cycle runs, your dishes should still be cleaned. The problem is that they will come out wet rather than dry, because the drying fan has stopped moving air through the drying system. The wash performance itself is not affected by the fan fault.

Why would E07 appear after my drying fan was just replaced?

If E07 returns shortly after a new fan motor was installed, the most common reasons are: the new motor has a wiring connection that isn't fully seated; water has been getting into the fan area from a separate leak (cracked spray arm, damaged hose) that wasn't identified during the fan replacement; or the replacement fan motor itself is faulty. If the fan was replaced very recently and E07 reappeared within a few washes, checking for water intrusion near the fan housing is the most productive next step.

What is E2030 and is it the same as E07?

They are different codes. E07 is specifically a drying fan fault on older and mid-generation Bosch displays. E2030 is a newer-platform electronics fault code on Bosch's HomeConnect and latest-generation models — Bosch publishes no component-level detail for it beyond a breaker reset and call to customer support. While both require technician attention if a reset doesn't clear them, E07 has a more specific and well-documented repair path (fan motor replacement), whereas E2030 typically points toward board-level electronics that require factory-level diagnosis.

How much does it cost to fix E07 or E2030?

A breaker reset and wiring reseat cost nothing. A replacement drying fan or Zeolite blower assembly runs $60–$120 as a DIY part, though access difficulty varies considerably by model. Professional repair in the Boston area for fan motor replacement typically runs $150–$280, and control board replacement (for E2030 or a board-level E07 cause) typically runs $300–$450, parts and labor included.