What does the E14 error code mean on a Bosch dishwasher?

The E14 error code on a Bosch dishwasher indicates a fault with the water flow sensor, also known as the aqua sensor or turbidity sensor. This sensor monitors the flow and clarity of water during the fill cycle. When it fails or gives inaccurate readings due to limescale buildup or physical damage, the dishwasher cannot properly measure water intake and stops the cycle by triggering the E14 fault.

What is the difference between E14 and E10 on a Bosch dishwasher?

E10 indicates a complete water supply failure where the dishwasher is not receiving enough water due to a closed valve, blocked hose, or low water pressure. E14 is a sensor-specific fault where water may be entering the dishwasher normally but the flow sensor is unable to accurately measure or detect it. E10 is a supply problem while E14 is a measurement problem.

What causes the E14 error on a Bosch dishwasher?

The most common causes of the E14 error include a limescale or debris coating on the flow sensor that interferes with its readings, a faulty or failed flow sensor that needs replacement, a damaged wiring connection between the sensor and the control board, or a control board fault that is misreading the sensor signal. In hard water areas, sensor fouling from mineral deposits is particularly common.

How do I fix the E14 error on my Bosch dishwasher?

Start with a hard reset by disconnecting the dishwasher from power for 5 minutes and restarting. If the error returns, run a descaling cycle using a dishwasher-safe descaling agent to remove any limescale coating on the sensor. Check that the water supply is fully open and the inlet hose is unobstructed. If the E14 error persists after these steps, the flow sensor or its wiring connection will need to be inspected and potentially replaced by a certified appliance repair technician.

Can I fix the Bosch E14 error myself?

A hard reset and descaling cycle can be performed at home and may resolve the error if it is caused by temporary sensor fouling. However, if the flow sensor itself has failed or the wiring is damaged, accessing and replacing the sensor requires disassembling internal components of the dishwasher. This type of repair is best handled by a certified appliance repair technician to ensure safe and accurate results.

Does Promix Appliance Repair fix Bosch dishwasher E14 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 flow sensors and aqua sensors on all Bosch dishwasher models. Call (781) 666-9565 to book a same-day appointment.

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E14

Bosch · Dishwasher · Error Code

Bosch Dishwasher E14 Error Code — NTC Temperature Sensor Disconnected / Open Circuit

Tech — Needs Inspection Also shown as: E 14 14

Quick Answer

The E14 error code means the control board is receiving no signal at all from the NTC temperature sensor — the circuit is open. Unlike E10 (unstable signal) or E12 (short circuit), E14 is a clean break: the connector is fully unplugged, a wire in the harness has snapped, or the sensor element itself has burned open. A hard reset will not clear a true E14 — the physical open circuit must be found and repaired. The dishwasher will not heat water until this is resolved.

Time

Technician visit

Difficulty

Professional only

DIY Steps

Hard reset only

Repair Cost

$110–$210

What the E14 Code Means

The NTC (Negative Temperature Coefficient) thermistor monitors water temperature throughout every wash cycle. Its resistance decreases smoothly as temperature rises — a known, predictable curve the control board uses to manage the heating element, confirm sanitization, and time the drying phase. When the control board sees infinite resistance on the NTC circuit — the electrical equivalent of a broken wire — it logs E14 and stops all heating immediately.

E14 is a definitive open-circuit fault. There is no signal to be erratic (that would be E10) and no short to zero ohms (that would be E12). The board is simply receiving nothing — like a phone call where the line is dead rather than crackling. This distinction is useful because it tells a technician exactly what to look for: a physical break in the sensor circuit, not an aging component producing weak signals.

The most important consequence: the dishwasher cannot heat water at all while E14 is active. Some models halt the cycle entirely; others allow the cycle to complete with cold water. Either way, dishes will not be properly cleaned or sanitized. Do not continue using the machine until E14 is resolved.

E14 in the NTC Sensor Code Family

E10

NTC fluctuation

Sensor connected, signal present but erratic — jumping outside expected range. Intermittent fault, often resets temporarily.

E12

NTC short circuit

Sensor resistance collapsed to near-zero — wires touching or sensor body shorted. Consistent fault, does not reset.

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E14

NTC open circuit

Sensor fully disconnected or wire broken — control board sees infinite resistance, no signal at all. Consistent fault, will not reset.

Common Causes — Most Likely First

1

NTC connector fully unplugged. The multi-pin connector between the NTC sensor and the wiring harness has pulled free — from vibration over time, or dislodged during a previous service visit. This is the easiest E14 to fix: reconnect the plug, and the code clears. Very common

2

Broken wire in the NTC harness. A wire in the sensor harness has snapped internally — often at a point where the harness bends repeatedly or is routed close to the sump. The outer insulation may appear intact while the conductor inside is broken. Common

3

Failed NTC sensor — burned open element. The thermistor element inside the sensor has failed open — its internal resistance has gone to infinity rather than following the normal temperature curve. Most common on machines 6+ years old after repeated thermal cycling. Common

4

Corroded connector pins — open circuit from oxidation. Severe corrosion on the NTC connector terminals has eaten through the pin contact area entirely, creating an open circuit that looks like a disconnected plug to the control board. Occasional

5

Control board NTC input circuit fault. The NTC input trace or pull-up resistor on the main PCB has failed, causing the board to read open-circuit even when the sensor is intact and properly connected. Confirmed only after the sensor and full harness continuity are verified. Less common

What You Can Try Before Calling — Step by Step

Perform a hard reset — unplug for a full minute

Turn the dishwasher off and unplug it completely, or trip its circuit breaker. Wait a full 60 seconds. Although a true open-circuit E14 will not clear from a reset alone, this step rules out a one-time control board misread before anything else. It also safely discharges the capacitors before you restore power.

Note: If E14 appears immediately on power-on — before any cycle even begins — the open circuit is present at room temperature and almost certainly a disconnected connector or broken wire rather than a thermally triggered failure.

Run a short cycle and confirm whether E14 returns immediately

Start a Quick Wash or Rinse cycle and watch the display. If E14 appears within the first minute — before the water has had any chance to heat — the circuit was already open before the cycle started. Note this timing; it tells the technician the break is a physical open, not a heat-induced failure, and points toward the connector or harness rather than a burned-out sensor.

Note whether dishes come out cold

If the cycle appears to run but dishes emerge cold and uncleaned, the heating element is confirmed inactive. Bring this observation to the technician — it corroborates E14 and rules out a display glitch showing a false code.

Book a professional diagnostic

A technician will check the NTC circuit in order: first the connector (reseat and retest), then continuity of the harness wires with a multimeter, then resistance of the sensor itself at room temperature. A healthy NTC on most Bosch models reads approximately 8,000–12,000 ohms at 20°C — an open-circuit sensor reads infinite resistance (OL on a multimeter). This sequence is quick and means the correct part is identified before anything is ordered.

If the connector was simply unplugged: reseating it resolves E14 with no parts cost — only a labor charge for the diagnostic visit. This is not uncommon after any recent appliance service near the dishwasher.

When to Call a Technician

E14 almost always requires professional service to locate and repair the open circuit. Call us if:

E14 returns immediately after a hard reset — the open circuit is physically present
E14 appears within the first minute of a cycle, before any heating begins
Dishes are consistently coming out cold despite the cycle appearing to complete
You had recent service work done near the dishwasher — a connector may have been accidentally dislodged
E14 appears alongside E09 (heating element) — both faults together suggest a wiring harness problem affecting multiple components

Repair Cost Expectations

Connector Reseat (Labor Only)

$80–$120

If the NTC connector was simply unplugged — no parts needed. Diagnostic visit plus connector reseat. Resolves a meaningful share of E14 cases, especially after recent nearby service work.

NTC Sensor Replacement

$110–$210

Typical Boston-area cost for NTC thermistor replacement — parts and labor. The sensor itself is $20–$45; the rest is diagnostic time and labor to access and replace it.

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Frequently Asked Questions

Will a hard reset fix E14?

In rare cases — if E14 appeared due to a one-time control board misread rather than a true physical break — a hard reset will clear it. But unlike E10, which is an intermittent fault that can clear and return, E14 represents a definitive open circuit. If the connector is unplugged or a wire is broken, no amount of resets will reconnect it. If E14 returns immediately after a hard reset, the physical break needs to be found and repaired.

What is the difference between E14 and E10?

E10 means the NTC sensor is producing a signal, but that signal is erratic and fluctuating outside the acceptable range — an intermittent fault that often clears temporarily after a reset. E14 means the control board is receiving absolutely no signal from the NTC circuit — the resistance is infinite, indicating a complete open circuit. E14 is typically a consistent fault that appears immediately on startup and does not clear with resets.

Could E14 be caused by something other than the NTC sensor?

Yes. The open circuit can be at any point in the NTC circuit: the sensor connector, a wire in the harness, or the NTC input circuit on the control board itself. A technician checks these in sequence — connector first, then harness continuity, then sensor resistance — before assuming the sensor has failed. In a significant number of E14 cases, the fix is simply reseating a connector that worked free, with no parts cost.

Can my dishwasher run cycles with E14 active?

Some Bosch models will halt the cycle immediately when E14 is detected; others allow the cycle to run but without heating. In either case, dishes will not be properly cleaned or sanitized — the water remains cold throughout. Do not use the dishwasher as a substitute for proper cleaning while E14 is active.

How much does it cost to fix E14?

If the NTC connector was simply unplugged, the repair is a labor-only visit — $80 to $120 in the Boston area. If the NTC sensor itself has failed open, replacement typically runs $110 to $210 parts and labor combined. The sensor part is $20 to $45; the remainder is diagnostic time and labor to access and replace it in the sump assembly.