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Bosch·Dishwasher (Gaggenau)medium severity
Bosch Error Code F3
Temperature sensor error
Common Causes
- 1NTC sensor failure
- 2Sensor wiring issue
- 3Sensor out of range
Step-by-Step Troubleshooting
- 1
Disconnect power and locate NTC sensor in the sump area
- 2
Measure sensor resistance at room temperature (expect 10-15k ohms at 70F)
- 3
Check for corrosion at sensor connector — sump area is high-moisture
- 4
Verify sensor wiring continuity from sensor to control board
Pro Diagnostic Tip
Gaggenau NTC sensors use the same BSH spec as Bosch — 10k ohm NTC type. At 150F wash temp, expect ~2.5k ohms. If the reading drifts but does not fully open/short, the sensor is degrading — replace proactively even if current reading seems close to spec.
You Might Also Notice
- •Water not heating properly
- •Cycle runs too long
- •Dishes not sanitized (no sanitize light)
Parts, Cost & Difficulty
Repair Difficulty
Moderate — Some Experience NeededEstimated Repair Cost
$120–$250
Parts + labor. Free diagnosis with repair.
Parts That May Need Replacement
12-009-872-003 (NTC temperature sensor, sump)BSH0000672 (sensor wiring harness)
Do You Have the Right Tools?
Bearing puller set ($120), drum spider wrench ($85), multimeter ($85), and diagnostic software. Our technician arrives with $15K+ in professional tools — your diagnostic is free.
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Frequently Asked Questions
What does Bosch error code F3 mean?
Bosch error code F3 indicates: Temperature sensor error. This is a medium-severity issue affecting your dishwasher (gaggenau).
How do I fix Bosch error code F3?
Disconnect power and locate NTC sensor in the sump area Then, Measure sensor resistance at room temperature (expect 10-15k ohms at 70F) Then, Check for corrosion at sensor connector — sump area is high-moisture There are 1 more steps — see the full troubleshooting guide above. This repair typically requires professional tools and expertise.
How do I know if my dishwasher (gaggenau) has error F3?
Besides the error code on the display, common signs include: Water not heating properly; Cycle runs too long; Dishes not sanitized (no sanitize light). If you notice any of these symptoms, check your dishwasher (gaggenau)'s display panel for error code F3.
How much does it cost to fix Bosch F3?
Repair costs for Bosch F3 typically range from $120 to $250 depending on the specific cause and parts needed. EasyBear offers free diagnosis when you proceed with the repair. Call (415) 795-7300 for a same-day appointment.