Fisher & Paykel Dryers F6 Error: Moisture sensor fault
Fisher & Paykel dryer error code F6 is a low-severity fault meaning Moisture sensor fault (auto-dry). The dryer is safe to use with an F6 fault — use timed-dry cycles rather than auto-dry until the sensor is repaired. Cleaning the moisture sensor strips clears F6 in the majority of cases.
~75%
DIY Fixable
From $75
Typical Repair Cost
30 min–1 hr
Pro Repair Time
Quick Assessment
Answer to continue safely
Is it safe to keep using?
Yes. The dryer is safe to use with an F6 fault — use timed-dry cycles rather than auto-dry until the sensor is repaired. Timed drying bypasses the moisture sensor entirely and is the recommended workaround while arranging repair.
Can I reset the code?
Yes. Cleaning the moisture sensor strips clears F6 in the majority of cases. If the code returns after cleaning, inspect the strips for physical damage and the wiring for breaks before concluding the board is at fault.
When to stop immediately?
Stop if you notice: Dryer runs continuously for more than 120 minutes without ending the cycle (over-drying risk), Sensor strips are missing or severely corroded.
Symptoms You May Notice
F6 displayed — auto-dry cycles end too soon
The in-drum moisture sensor returns incorrect readings, causing the controller to terminate auto-dry cycles prematurely with clothes still damp.
Cycles run much longer than expected
A shorted or contaminated sensor that always reads "wet" keeps the dryer running past the point clothes are actually dry.
F6 shown at start of auto-dry cycle
On some models the board runs a sensor self-test at cycle start and displays F6 immediately if the sensor bars are bridged or open-circuit.
Possible Causes
Fabric softener or dryer sheet residue on sensor bars
A coating of fabric softener or dryer sheet wax on the stainless steel sensor strips in the drum insulates them, preventing accurate conductivity readings.
DIY PossibleBroken or corroded sensor strip
One or both of the metal sensor bars inside the drum has corroded, cracked, or detached from its mount.
DIY PossibleDamaged sensor wiring
The low-voltage signal wire from the sensor strips to the control board has been damaged by drum movement or heat.
DIY PossibleControl board sensor input failure
The board circuit that reads the conductivity signal from the sensor strips has failed.
Requires ProfessionalSafe Checks You Can Do
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1
Clean the moisture sensor bars
Open the dryer door and locate the two metal sensor strips on the front drum wall, typically below the door opening. Wipe them firmly with a cloth dampened with isopropyl alcohol or a small amount of white vinegar to remove residue.
Do not use abrasive pads or steel wool on the sensor strips — scratching the surface increases future residue adhesion.
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2
Power-cycle the dryer
After cleaning the sensor strips, unplug the dryer for 5 minutes, restore power, and run a test auto-dry cycle with a damp load.
If the cycle now runs to appropriate dryness, fabric softener residue was the cause — switch to liquid fabric softener added to the washer rinse cycle rather than dryer sheets.
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3
Inspect sensor strips for damage
After unplugging, closely inspect each sensor strip for cracks, corrosion pitting, or missing sections. Gently tug the strip to confirm it is firmly bonded to the drum wall.
A strip that flexes or lifts is likely to lose contact intermittently during drum rotation, causing erratic dryness detection.
When to Call a Professional
Contact a qualified technician if:
- Sensor strips are physically damaged and require drum-wall adhesive replacement
- Code persists after strip cleaning and wiring inspection (board input failure)
Need Professional Help?
Find qualified technicians in your area for proper diagnostics and repair.
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