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Error code reference

Bosch Dryer Error Code E:16

Sensors

Bosch codesBosch dryer codes

Sensors - Door sensor or switch defective; window opened while process running.

First step from the service manual

Check electrical connections; if door switch, check it; if door sensor, exchange temporarily and check function.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What E:16 means on a Bosch dryer

The E:16 error code on a Bosch dryer indicates a fault within the door sensing system. This can involve either the mechanical door switch, which signals the control board when the door is physically latched, or an electronic door sensor. The code triggers when the control board detects that the door has been opened or an unexpected door-open signal has been received while a drying cycle is actively running. In some cases, the fault is not a true door opening but rather a failed component sending an incorrect signal to the control board.

The door switch is a simple electromechanical component that closes a circuit when the door is fully shut. If the switch contacts are worn, corroded, or mechanically damaged, the switch may intermittently or permanently fail to complete the circuit, causing the control board to register a door fault. The door sensor, in dryers equipped with one, performs a similar detection function but operates electronically and can fail due to wiring issues or internal component degradation.

Diagnosing E:16 begins with a thorough inspection of all electrical connections leading to the door switch or sensor. Loose, corroded, or broken wiring harness connectors are a frequent cause of intermittent door fault codes. If the wiring checks out, the door switch itself should be tested for proper continuity. If a door sensor is present, the recommended approach is to substitute a known-good sensor temporarily to determine whether the original sensor is the source of the fault before committing to a replacement.

Source: manufacturer service documentation.

Common causes of E:16

  1. 01

    Faulty door switch

    Part replacement

    The door switch contacts can wear out or corrode over time, causing the switch to send a false open-door signal even when the door is fully closed. Testing the switch for continuity with a multimeter will confirm whether it is functioning correctly.

  2. 02

    Loose or damaged wiring connections

    Wiring / connection

    Wiring harness connectors at the door switch or sensor can loosen from vibration or develop corrosion, creating an intermittent or permanent fault signal. Inspecting and reseating all connectors in the door circuit is the recommended first step.

  3. 03

    Door actually opened mid-cycle

    Wiring / connection

    If someone physically opened the dryer door during a running cycle, E:16 will appear as an expected response. Closing the door firmly and restarting the cycle will clear the code in this scenario.

  4. 04

    Defective door sensor

    Part replacement

    On models equipped with an electronic door sensor rather than a purely mechanical switch, the sensor itself can fail internally. Temporarily substituting a known-good sensor and checking whether the error clears is the diagnostic method recommended for this component.

  5. 05

    Misaligned door latch or striker

    Wiring / connection

    If the door latch or striker becomes bent or misaligned, the door may not engage the switch fully even when it appears closed. A visual inspection of the latch mechanism and striker alignment can identify this issue.

See the test procedure for each cause

Frequently asked questions about E:16

What does E:16 mean on a Bosch dryer?
E:16 on a Bosch dryer indicates a problem with the door sensing system, either the door switch or the door sensor. The control board has detected that the door was opened during a running cycle or is receiving a faulty open-door signal from a defective component. The dryer halts operation as a safety response until the door circuit registers correctly.
Can I fix E:16 on my Bosch dryer myself?
Many E:16 causes are accessible to a technically confident DIYer. Start by checking that the door is fully closed and inspect all wiring connections at the door switch for looseness or corrosion. If the connections are secure, testing the door switch with a multimeter or swapping in a replacement sensor are the next steps. If the wiring or internal control board is damaged, a professional repair technician may be needed.
Will resetting my Bosch dryer clear the E:16 error?
A reset may temporarily clear E:16 if the fault was caused by a momentary event such as the door being accidentally bumped open during a cycle. However, if the underlying cause is a faulty switch, defective sensor, or damaged wiring, the code will return as soon as another cycle is attempted. Addressing the root cause is necessary for a lasting resolution.
Is it safe to use my Bosch dryer when it shows E:16?
The dryer will typically prevent operation while E:16 is active because it cannot confirm the door is securely closed, which is a fundamental safety requirement. Attempting to bypass or ignore this code is not recommended. Resolve the door switch or sensor fault before resuming normal use to avoid potential safety hazards.
How much does it cost to repair a Bosch dryer E:16 error?
Repair costs vary depending on the failed component. A replacement door switch is generally an inexpensive part, typically in the range of $15 to $40 for the component alone. If a door sensor replacement or professional labor is required, total repair costs including a service call can range from $80 to $200 or more depending on your location and the technician's rates.

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