Bosch Washer Error Code F37: How to Fix It
Medium 45-90 minutes High Severity
Verified June 2026
- Error Code
- F37
- Brand
- Bosch
- Product Type
- washer
- Severity
- High
- DIY Difficulty
- Medium
- Estimated Fix Time
- 45-90 minutes
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Tools You'll Need
- Screwdriver set
- Multimeter
- Electrical contact cleaner
- Pliers
How to Fix Error Code F37
-
Safety preparation
Always disconnect power before performing any repairs to prevent electrical shock. -
Access the temperature sensor
Take photos of wire connections before disconnecting anything to ensure proper reassembly. -
Test the sensor connections
-
Test sensor resistance
-
Check wiring harness
-
Replace the temperature sensor
-
Reassemble and test
Parts You May Need
NTC temperature sensor
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Wire harness
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NTC temperature sensor
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Wire harness
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NTC temperature sensor
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Wire harness
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NTC temperature sensor
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Wire harness
Check Price on Amazon
NTC temperature sensor
Check Price on Amazon
Wire harness
Check Price on Amazon
NTC temperature sensor
Check Price on Amazon
Wire harness
Check Price on Amazon
NTC temperature sensor
Check Price on Amazon
Wire harness
Check Price on Amazon
NTC temperature sensor
Check Price on Amazon
Wire harness
Check Price on Amazon
NTC temperature sensor
Check Price on Amazon
Wire harness
Check Price on Amazon
NTC temperature sensor
Check Price on Amazon
Wire harness
Check Price on Amazon
NTC temperature sensor
Check Price on Amazon
Wire harness
Check Price on Amazon
NTC temperature sensor
Check Price on Amazon
Wire harness
Check Price on Amazon
NTC temperature sensor
Check Price on Amazon
Wire harness
Check Price on Amazon
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When to Call a Professional
Call a professional appliance technician if the control board is suspected to be faulty, if you're uncomfortable working with electrical components, or if the error persists after replacing the sensor and checking all wiring. Also seek professional help if your washer is still under warranty.Frequently Asked Questions
What does F37 mean on my Bosch washer?
F37 indicates a fault with the NTC temperature sensor, specifically an open circuit. This sensor monitors water temperature and when it fails, your washer cannot properly control heating during wash cycles.
Can I still use my Bosch washer with F37 error?
No, the F37 error will prevent your washer from operating properly. The machine may not start or will stop mid-cycle because it cannot monitor water temperature for safe operation.
How much does it cost to fix Bosch washer F37 error?
A replacement NTC temperature sensor typically costs $15-40. Professional repair service costs $150-300 including parts and labor. DIY repair can save significant money if you're comfortable with basic appliance repair.
Why did my Bosch washer temperature sensor fail?
Temperature sensors can fail due to age, mineral buildup from hard water, electrical surges, or manufacturing defects. Most NTC sensors last 8-12 years under normal use conditions.
How can I prevent F37 error from happening again?
Use water softener if you have hard water, avoid overloading the washer, and have your washer professionally serviced every few years. Regular maintenance helps extend component life including temperature sensors.