Bosch Dryer Error E18
⚡ Quick Answer: The Bosch dryer E18 error code indicates a drainage issue, often linked to a malfunctioning heater/air temperature sensor (NTC R2). This sensor fails ... ✅ DIY Fixable
What Does Error E18 Mean?
The Bosch dryer E18 error code indicates a drainage issue, often linked to a malfunctioning heater/air temperature sensor (NTC R2). This sensor fails to report valid temperature readings to the control board, leading to premature cycle termination and improper heating. Users may notice that drying cycles stop unexpectedly and that the appliance may not heat correctly, potentially causing water accumulation within the dryer.
Common Symptoms:
- Dryer stops and displays E18 code on display
- Drying cycles may abort early
- Heating may stop or not operate correctly
Possible Causes
- Faulty heater/air temperature sensor (NTC R2) (medium)
- Loose or damaged wiring/connectors to the R2 temperature sensor (medium)
How to Fix Error E18
DIY Fix Basic visual check and reset
- Power off and unplug the dryer.
- Wait a few minutes, then plug it back in to see if the error persists (simple power reset).
- Ensure the dryer’s vents and lint filter are clean (helps overall operation, but does not directly fix E18).
Technician Only Inspect and replace temperature sensor and wiring
- Disconnect power to the dryer.
- Access the heater/air temperature (R2) sensor — typically located near the heater housing.
- Inspect wiring harness and connectors for damage, corrosion, or looseness; repair or replace as needed.
- Test the NTC sensor resistance with a multimeter and compare to manufacturer specifications; replace if out of range.
- Reassemble and test dryer operation.
Parts needed: NTC temperature sensor (R2), Wiring harness/connectors
- If the error persists after wiring and sensor checks, or if you are not comfortable performing sensor diagnostics.
Next step
Choose the next step for E18
Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.
Most relevant component to inspect
Temperature Sensor
Monitors the internal temperature to ensure correct operation and prevent overheating.
- Typical part-only price
- $15 - $35
- DIY difficulty
- Easy
- Estimated time
- 15-30 mins
Where can I find the model number?
Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.
Verify the complete model and part number on the retailer's compatibility page before ordering.
Other parts options
Check related components first; use model search as a fallback.
Wiring Harness
Connects controls, sensors, motors, and other electrical components inside the appliance.
Model-compatible Dryer parts
Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. We may earn a commission from other qualifying purchases or service requests made through links on this page, at no additional cost to you. Recommendations are based on repair relevance, not commission rate.
Optional routine care
Maintenance supplies
These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.
Dryer Vent Cleaning Kit
Helps remove routine lint buildup from an accessible dryer vent path. It does not diagnose or repair an E-code or failed component.
Lint Trap Cleaning Brush
A narrow brush for routine cleaning around an accessible lint screen and housing.
Dryer Vent Hose Kit
A replacement exhaust duct option for visibly crushed or damaged external venting. Check diameter, length, local code, and installation clearance.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.
Technical Specifications
| wattage | 120W |
|---|---|
| component | Drain Pump |
| resistance | 30-50 ohms |
| part_number | Bosch 00619926 |
| voltage_rating | 240V AC |
Common Questions
What does E18 error mean on bosch dryer?
E18 indicates a drainage issue due to a faulty heater/air temperature sensor, causing cycles to abort and heating problems.
Can I fix bosch dryer E18 error myself?
Yes, you can perform a basic visual check and reset the dryer. Ensure the vents and lint filter are clean.
How much does it cost to fix E18 error?
The estimated repair cost is medium, covering parts and technician labor for sensor replacement.
When should I call a technician for E18?
Call a technician if the error persists after checking the wiring and sensor, or if you're uncomfortable diagnosing the issue.
Sources & References
Data last verified: 2026-07-25
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