mypros+
Error code reference

Fisher & Paykel Refrigerator Error Code 6

Defrost sensor hot

Fisher & Paykel codesFisher & Paykel refrigerator codes

Defrost sensor hot - faulty defrost temperature sensor with resistance out of normal range (resistance less than 660 Ohms).

First step from the service manual

Check the resistance of the defrost temperature sensor. If faulty, replace.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

MyPros+ Max

Get the full diagnostic procedure for 6.

  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
  • Verified part numbers when replacement is required
Get the full procedure

$29/month · Cancel anytime · Or $9.95 3-day pass

What 6 means on a Fisher & Paykel refrigerator

Error code 6 on a Fisher & Paykel refrigerator indicates that the defrost temperature sensor is reading a resistance value below 660 Ohms, which the control board interprets as a "sensor hot" fault. The defrost temperature sensor is a negative temperature coefficient (NTC) thermistor mounted on or near the evaporator coil. Its resistance changes inversely with temperature: as temperature rises, resistance drops. A reading below 660 Ohms means the sensor is reporting an extremely high temperature, or more commonly, that the sensor itself has failed electrically and is no longer operating within its normal resistance range.

The most direct cause of this fault is a defective defrost temperature sensor. Internal sensor failures can result from physical damage, moisture intrusion into the sensor housing, or simple component degradation over time. A short circuit within the sensor or its wiring harness can also pull the resistance reading well below the 660 Ohm threshold, triggering the code even if actual evaporator temperatures are within normal limits.

Diagnosing this fault begins with disconnecting the defrost temperature sensor and measuring its resistance with a multimeter. A reading below 660 Ohms confirms the sensor is out of specification and must be replaced. Technicians should also inspect the wiring harness and connector for signs of corrosion, pinched wires, or moisture damage that could cause a false low-resistance reading before condemning the sensor itself.

Source: manufacturer service documentation.

Common causes of 6

  1. 01

    Failed defrost temperature sensor

    Part replacement

    The sensor itself has degraded or shorted internally, causing its resistance to drop below 660 Ohms. This is confirmed by measuring the sensor's resistance directly with a multimeter.

  2. 02

    Short circuit in sensor wiring harness

    Wiring / connection

    A pinched, chafed, or damaged wire in the harness connecting the sensor to the control board can create a short that mimics a low-resistance sensor reading. Inspect the harness routing for visible damage.

  3. 03

    Corrosion or moisture at the sensor connector

    Wiring / connection

    Moisture intrusion into the sensor connector can cause corrosion that lowers the measured resistance across the circuit. Inspect the connector for green or white deposits and signs of water ingress.

  4. 04

    Sensor dislodged from its mounting position

    Wiring / connection

    If the sensor has shifted away from its intended location near the evaporator coil, it may be exposed to abnormally high temperatures that drive its resistance below specification. Check that the sensor is properly clipped or secured in place.

See the test procedure for each cause

Frequently asked questions about 6

What does 6 mean on a Fisher & Paykel refrigerator?
Error code 6 on a Fisher & Paykel refrigerator indicates a defrost sensor hot fault. The defrost temperature sensor is reading a resistance below 660 Ohms, which is outside the normal operating range. This points to a faulty sensor or a wiring issue in the sensor circuit. The sensor will need to be tested and replaced if it is confirmed defective.
Can I fix error code 6 on my Fisher & Paykel refrigerator myself?
A knowledgeable DIYer can diagnose this fault by disconnecting the defrost temperature sensor and measuring its resistance with a multimeter. If the reading is below 660 Ohms, the sensor needs to be replaced. Wiring harness inspection is also straightforward, but working inside a refrigerator near electrical components carries some risk, so comfort with basic appliance repair is recommended before attempting this yourself.
Is it safe to keep using my refrigerator while error code 6 is active?
A faulty defrost temperature sensor can interfere with the refrigerator's automatic defrost cycle. If defrost cycles do not complete correctly, ice can accumulate on the evaporator coil, reducing cooling performance over time. It is best to have the fault addressed promptly to prevent potential food spoilage or further component damage.
How much does it cost to repair Fisher & Paykel refrigerator error code 6?
If only the defrost temperature sensor requires replacement, parts typically range from $20 to $60 depending on the specific model. If professional labor is needed, total repair costs including parts and service time generally fall in the range of $100 to $250. Costs can be higher if wiring harness damage or control board issues are also found during diagnosis.
Will resetting my Fisher & Paykel refrigerator clear error code 6?
Resetting the refrigerator may temporarily clear the error code display, but the fault will return if the underlying sensor or wiring issue has not been resolved. Because the code is triggered by an out-of-range resistance reading from a hardware component, the root cause must be corrected before the error will clear permanently. A replacement sensor or repaired wiring is required for a lasting fix.

Related Fisher & Paykel refrigerator codes

All Fisher & Paykel refrigerator codes
View all 71 Fisher & Paykel refrigerator codes

78,000+ service manuals · 160,000+ error codes · 55+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass