Haier Refrigerator Error Code F1

Reviewed by the ApplianceErrors Editorial Team · Verified against manufacturer service documentation · Last verified: June 10, 2026

⚠ Medium Severity 🔧🔧 Moderate DIY

Temperature sensor failure — freezer compartment

The most common cause of the F1 error on a Haier refrigerator is thermistor open circuit (~65% of cases); start with: test the thermistor.

💰 DIY cost: $15–$40 👨‍🔧 Pro cost: $150–$300 Save $135+ by doing it yourself

Haier Refrigerator error code F1 on the display panel — How the F1 code appears on a Haier refrigerator display

What Does Error Code F1 Mean on a Haier Refrigerator?

Temperature sensor failure — freezer compartment.

F1 fires when the control board reads the freezer compartment NTC thermistor as open or outside its valid resistance window, meaning it can no longer trust that sensor to regulate freezer temperature. Because the reading is lost, the board may overcool or let the compartment drift warm. It differs from F3, which flags a fault on a different (typically fresh-food or defrost) sensor circuit — F1 is specific to the freezer evaporator-area thermistor, its connector, or its harness.

Models affected: Haier refrigerators using freezer NTC thermistor monitoring, including French-door and bottom-freezer models such as the HRQ16N3BGS

What owners report: Owners commonly report F1 appearing after a defrost cycle or heavy frost buildup, since moisture and ice near the evaporator connector can intermittently open the circuit. A quick win many describe is simply reseating the sensor connector and clearing frost before assuming the thermistor itself has failed.

What Causes Error Code F1?

Here are the most common causes in order of frequency. Start with the most likely cause before moving to the next:

1

Thermistor open circuit 65% of cases
2

Connector loose 25% of cases
3

Wiring harness fault 10% of cases

How to Fix Haier Refrigerator Error Code F1

🔧🔧 Moderate DIY Est. time: 30–60 min

⚡ Safety first: Unplug the appliance before opening any panels or touching internal components.

1

Test the thermistor

Measure the freezer sensor: about 16k ohms at 32°F/0°C or 6k–8k ohms at room temperature is expected.

🔩 Multimeter
2

Check the connector

Reseat the thermistor connector and inspect for corrosion, frost intrusion, or a loose pin.
3

Inspect the harness

Trace the sensor wiring around the evaporator for breaks or rub damage that can open the circuit.
4

Replace the thermistor

Clip the old sensor from the evaporator area and install a matching Haier thermistor in the same position.

🔩 Haier thermistor ($15–$40)

How to Reset Error Code F1

After replacing the thermistor or reseating its connector, unplug the refrigerator for 5 minutes, restore power, and allow 24 hours for temperatures to stabilize.

Note: If the error returns after resetting, the underlying issue has not been resolved. Work through the fix steps above.

Did this guide fix your appliance?

When to Call a Professional

If a new thermistor reads correctly but F1 persists, the control board's sensor input circuit has failed and the board needs professional diagnosis.

Average professional repair cost for this issue: $150–$300

Related Error Codes

Defrost sensor failure

⚠ Medium Severity

Same Code on Other Brands

Error code F1 appears on these other brands too. See every brand that shows F1 →

Samsung Microwave F-1

Keypad membrane failure — dead or stuck key

LG Oven F1

Oven temperature sensor open circuit

Whirlpool Dryer F01

Main control board failure

Whirlpool Oven F1

Control board failure

Find Replacement Parts

Use these links to find the exact replacement parts for your Haier Refrigerator:

🔩

Search PartSelect

Haier Refrigerator repair parts

🔧

Search RepairClinic

Step-by-step video guides

External links — ApplianceErrors.com is not affiliated with these retailers.

More Haier Refrigerator Error Codes

F6 Communication error — control board fault

Frequently Asked Questions

Can I keep using my Haier Refrigerator when error F1 appears? +

You often can for a cycle or two, but the sensor issue behind F1 will keep interrupting normal operation until it is fixed. Plan the repair rather than ignoring the code.

What most commonly causes F1 on a Haier Refrigerator? +

Across reported Haier refrigerator repairs, the most frequent is thermistor open circuit (65% of cases), connector loose (25%), then wiring harness fault (10%). Check them in that order before replacing any parts.

F1 keeps coming back after a reset — what should I check next? +

A reset only clears the stored F1 fault; if it returns, the sensor problem is still present. Move on to the physical checks — test the thermistor, then check the connector — since the code will reappear until the root cause is resolved. This is a moderate job — a multimeter and some disassembly are usually involved.

How much does it cost to fix Haier Refrigerator error F1? +

A DIY repair typically runs $15–$40 in parts, versus $150–$300 for a professional service call, so handling it yourself saves around $135. Expect the work to take roughly 30–60 minutes.

Which Haier Refrigerator models show error F1? +

F1 is documented on Haier refrigerators using freezer NTC thermistor monitoring, including French-door and bottom-freezer models such as the HRQ16N3BGS. Other units sharing the same control platform can display it too, so the fixes here generally transfer across the series.

Sources & References

• Haier Appliances Support — official manufacturer documentation
• Our editorial & verification policy

Content verified against manufacturer service documentation. Last verified: June 10, 2026.

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