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Appliance Error Codes

Bosch WQB245AXUC E17 Error Code | E17 Temperature Sensor Fault

Error e17 on Bosch wqb245axuc: Temperature sensor fault — NTC temperature sensor open or short circuit in the a. Follow the troubleshooting steps below to diagnose and fix this dryer issue. ## What Does E17 Mean on a Bosch WQB245AXUC? Your Bosch dryer is displaying an E17 error code, which indicates a fault with one of the NTC temperature sensors that monitor air temperature in the dryer’s airflow circuit. These sensors provide the control board with temperature data used to regulate heating cycles and protect against overheating. When a sensor reading falls outside the valid range — either open circuit (broken sensor) or short circuit (shorted sensor) — E17 is triggered. The dryer cannot safely control drying temperatures without valid sensor data. ## Fault Details | Field | Value | |-------|-------| | Error Code | E17 | | Appliance | Bosch WQB245AXUC 800 Series 24-inch Compact Ventless Heat Pump Dryer | | Fault Type | Temperature sensor fault | | Severity | Medium | | User Serviceable | No — professional service recommended | | Applicable Models | WTW87NH1UC, WQB245AXUC, WQB245B0UC | ## Common Causes - NTC sensor element failure — probe resistance outside valid range

  • Sensor wire harness loose or disconnected from the sensor connector
  • Heat damage to the sensor wire insulation from a previous overheating event
  • Lint buildup on the sensor probe affecting its thermal response
  • Control board NTC sensor input circuit failure ## Step-by-Step Troubleshooting | Step | Action | What To Do | Expected Result | |------|--------|------------|-----------------| | 1 | Reset the dryer | Unplug the dryer for 5 minutes, then restore power. Run a short test cycle. E17 from a transient sensor glitch may clear after a power reset | E17 does not return — transient fault cleared | | 2 | Clean lint from the sensor area | Accumulated lint on or near the temperature sensor probe can insulate it from the airflow, causing incorrect readings. Clean the lint filter and condenser thoroughly (see E01/E02 steps) and run a test cycle | E17 resolves after lint cleaning and improved airflow | | 3 | Check sensor wire harness connections | A Bosch technician can access the temperature sensor wire harness and test connector seating. Heat cycling causes connectors to expand and contract, sometimes loosening them over years of use | Loose connector re-seated; E17 resolved | | 4 | Measure sensor resistance | A certified technician can measure the NTC temperature sensor resistance with a multimeter. A properly functioning NTC sensor reads approximately 10 kΩ at room temperature (~25°C / 77°F). Open circuit (OL) or near-zero resistance confirms sensor failure requiring replacement | Sensor resistance confirmed out of spec; replacement required | | 5 | Contact Bosch service for sensor replacement | NTC temperature sensor replacement in a Bosch compact dryer requires accessing internal components. Contact Bosch customer service at 1-800-944-2904 for professional repair | E17 resolved after NTC sensor replacement | ## Frequently Asked Questions ### What is the lint screen temperature sensor? Some Bosch dryer models have an NTC temperature sensor near the lint filter position to monitor the incoming air temperature before it passes through the filter. This sensor helps detect early signs of airflow restriction by noticing unusual temperature patterns. E17 on these models often points to this specific sensor. ### Can excessive lint buildup cause E17? Yes. If the temperature sensor probe is coated in a thick layer of lint, it cannot accurately measure airflow temperature. This can produce out-of-range readings that trigger E17. Thorough cleaning of the lint filter, condenser, and the sensor probe area often resolves E17 before sensor replacement is needed. ### Is E17 dangerous? E17 stops the drying cycle, which prevents the dryer from operating without valid temperature feedback. This is a safety-first design — running the dryer without accurate temperature control risks overheating. Do not attempt to bypass E17; have the sensor repaired. ### How long does NTC sensor replacement take? Bosch dryer NTC sensor replacement typically takes a trained technician 30–60 minutes. The sensors are usually located in the airflow duct and require partial disassembly of the dryer cabinet to access. Parts costs are relatively low () with professional labor adding . --- Source: Bosch 800 Series 24-inch Compact Ventless Heat Pump Dryer service documentation. Last Updated: March 2026 ### Is it safe to keep using my Bosch wqb245axuc with error e17? If error e17 does not indicate an immediate safety hazard such as a gas leak, electrical short, or water flooding, you can continue limited use while monitoring the appliance. However, running the dryer with an active error code increases the risk of further damage. Address the underlying issue as soon as possible. For high-severity errors, disconnect the appliance and contact a qualified technician. ### How much does it cost to fix error e17 on a Bosch wqb245axuc? Repair costs for error e17 on the Bosch wqb245axuc dryer depend on the root cause. DIY fixes such as cleaning filters, resetting the unit, or reconnecting loose wires cost nothing beyond basic tools. If a component replacement is needed, parts and labor from a certified technician are the main expenses. Contact a Bosch-authorized service provider for an accurate estimate based on your specific situation. ### What does error code e17 mean on a Bosch dryer? Error code e17 on Bosch dryer models indicates Temperature sensor fault — NTC temperature sensor open or short circuit in the air path. This error is detected by the appliance’s internal diagnostic system and displayed to alert the user that attention is needed. Refer to the troubleshooting steps above for guidance on resolving this issue. ### Is it safe to keep using my Bosch wqb245axuc with error e17? If error e17 does not indicate an immediate safety hazard such as a gas leak, electrical short, or water flooding, you can continue limited use while monitoring the appliance. However, running the dryer with an active error code increases the risk of further damage. Address the underlying issue as soon as possible. For high-severity errors, disconnect the appliance and contact a qualified technician. ### How much does it cost to fix error e17 on a Bosch wqb245axuc? Repair costs for error e17 on the Bosch wqb245axuc dryer depend on the root cause. DIY fixes such as cleaning filters, resetting the unit, or reconnecting loose wires cost nothing beyond basic tools. If a component replacement is needed, parts and labor from a certified technician are the main expenses. Contact a Bosch-authorized service provider for an accurate estimate based on your specific situation. ### What does error code e17 mean on a Bosch dryer? Error code e17 on Bosch dryer models indicates Temperature sensor fault — NTC temperature sensor open or short circuit in the air path. This error is detected by the appliance’s internal diagnostic system and displayed to alert the user that attention is needed. Refer to the troubleshooting steps above for guidance on resolving this issue.