What does F24 mean?
NTC temperature sensor is reading out of range or has failed.
Common causes
- Failed NTC sensor
- Loose connector
- Wiring damage
- Sensor drift
Diagnostic & testing steps
- 1. Locate NTC sensor on circulation heater assembly
- 2. Measure resistance: ~12K ohms at 77°F (25°C)
- 3. Check connector is fully seated
- 4. Inspect wiring for damage or corrosion
- 5. Replace NTC sensor if readings are out of range
Tools required
- Multimeter
- Phillips screwdriver
OEM parts & part numbers
NTC Temperature Sensor
Part numbers: 6228711
Safety warning
⚠️ Disconnect power before testing
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