Fisher & Paykel Ranges F3-E0 Error: Oven RTD sensor open circuit
Fisher & Paykel range error code F3-E0 is a mid-severity fault meaning Oven RTD temperature sensor — open circuit. With an open-circuit RTD sensor the oven cannot confirm its cavity temperature, so it will refuse to heat or may heat erratically.
~65%
DIY Fixable
From $95
Typical Repair Cost
30–60 min
Pro Repair Time
Quick Assessment
Answer to continue safely
Is it safe to keep using?
No. With an open-circuit RTD sensor the oven cannot confirm its cavity temperature, so it will refuse to heat or may heat erratically. Do not use the oven until the sensor is replaced.
Can I reset the code?
No. F3-E0 will return immediately after every power-cycle until the open-circuit sensor or wiring is physically repaired. A reset does not clear the underlying hardware fault.
When to stop immediately?
Stop if you notice: Code returns immediately after every reset, Resistance test confirms open circuit in the RTD sensor.
Symptoms You May Notice
F3-E0 on display at preheat
The code appears shortly after a bake or broil cycle begins, typically within the first few minutes of preheat.
Oven will not heat
The E.R.C. refuses to energise the bake or broil element (or open the gas valve) because it cannot confirm a valid temperature reading.
Oven undershoots or never reaches setpoint
In some fault states the oven heats briefly then cuts out when the open-circuit reading is interpreted as an over-temperature condition.
Possible Causes
Failed RTD sensor — open circuit
The RTD resistance element inside the sensor probe has broken, producing infinite resistance and an out-of-range reading at the E.R.C.
DIY PossibleBroken or disconnected sensor harness
The two-wire harness between the RTD sensor and the E.R.C. has broken or pulled free of its connector, creating an open circuit in the measurement path.
DIY PossibleCorroded sensor connector at E.R.C.
Grease vapour and moisture over time can corrode the sensor connector pins, raising contact resistance to the point of a functional open circuit.
DIY PossibleSafe Checks You Can Do
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1
Inspect the RTD probe in the oven cavity
With the oven unplugged, locate the RTD probe protruding from the rear wall of the oven cavity (typically held by two screws). Check that it is seated fully in its bracket and that the rear harness connector is not pulled loose.
Sometimes a baking rack or large pan can catch the sensor probe and pull it partially out of its bracket.
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2
Test RTD sensor resistance
With the range unplugged, disconnect the RTD sensor leads at the rear harness connector and measure resistance with a multimeter. An open-circuit reading (OL) confirms sensor failure. Expected value: approximately 1,080–1,100 Ω at 68°F (20°C).
Also wiggle the sensor lead while measuring — an intermittent fault will show resistance jumping between a valid value and OL.
Tools required -
3
Inspect and clean the harness connector
Examine the two-pin connector at the E.R.C. for corrosion or pushed-back pins. Clean gently with electrical contact cleaner and reseat the connector.
Green or white residue on the pins indicates corrosion that is raising contact resistance — clean thoroughly before retesting.
Tools required
When to Call a Professional
Contact a qualified technician if:
- Sensor tests good but code persists — E.R.C. input circuit has failed
- Harness runs through oven liner and is inaccessible without liner removal
- Code co-presents with F1-E0 suggesting board-level failure
Need Professional Help?
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