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Error code reference

Frigidaire Refrigerator Error Code HI

High temperature alarm indicating the refrigerator or freezer compartment has reached non-compliant…

Frigidaire codesFrigidaire refrigerator codes

High temperature alarm indicating the refrigerator or freezer compartment has reached non-compliant temperatures for an extended period.

First step from the service manual

Touch any key or open a door to acknowledge the alarm. Check that doors are fully closed and sealed.

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

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What HI means on a Frigidaire refrigerator

The HI error code indicates the control board has detected a fresh food (FF) compartment temperature exceeding 55°F. The code appears on the FF display while the FZ (freezer) display remains blank, which distinguishes this alert as specific to the fresh food section. This is a temperature threshold alarm, not a sensor fault code, meaning the refrigerator is actively reporting a confirmed high-temperature condition rather than an electrical or component failure reading.

For homeowners, HI means your refrigerator section is too warm to safely store food. The freezer may still be functioning normally since only the FF display is active. Common reasons include a door left open, a recent large load of warm groceries, a dirty condenser coil reducing cooling efficiency, a failed evaporator fan motor not circulating cold air into the fresh food section, or a defrost system problem causing ice buildup that blocks airflow. A faulty door gasket that allows warm air infiltration is also a frequent culprit.

Before replacing parts, check the basics: confirm the doors are sealing properly, verify the refrigerator is not overpacked, and make sure condenser coils are clean. If the temperature does not recover within a few hours under normal conditions, further diagnosis of the cooling and airflow systems is needed.

Source: manufacturer service documentation.

Common causes of HI

  1. 01

    Door left open or door gasket failure

    Wiring / connection

    If the fresh food door has been open for an extended period or the door gasket is torn or no longer sealing, warm ambient air enters the compartment and drives the temperature above 55°F. This is the most common non-mechanical cause of the HI code.

  2. 02

    Evaporator fan motor not running

    Part replacement

    The evaporator fan circulates cold air from the evaporator coil into the fresh food compartment. If the fan motor fails or its blade is obstructed, the FF section loses cooling even while the compressor and freezer operate normally, which matches the pattern of HI appearing only on the FF display.

  3. 03

    Defrost system failure causing evaporator ice blockage

    Part replacement

    A failed defrost heater, defrost thermostat, or defrost timer allows ice to accumulate on the evaporator coils, restricting airflow to the fresh food section. The freezer may appear to cool adequately while the FF temperature climbs high enough to trigger HI.

  4. 04

    Dirty or blocked condenser coils

    Wiring / connection

    Condenser coils clogged with dust and debris reduce the refrigerator's ability to dissipate heat, lowering overall cooling capacity. This can cause the fresh food section to gradually climb above 55°F, particularly in warm ambient conditions.

See the test procedure for each cause

Frequently asked questions about HI

What does HI mean on a Frigidaire refrigerator?
HI on a Frigidaire refrigerator means the fresh food (FF) compartment temperature has risen above 55°F. The code displays on the FF section display while the freezer display remains blank. It is a temperature alarm indicating the refrigerator section is too warm, not a sensor or wiring fault code.
Is it safe to use my Frigidaire refrigerator when the HI code is showing?
No, you should not rely on the refrigerator to safely store perishable food while HI is active. A fresh food compartment above 55°F is outside the safe zone for dairy, meat, and other perishables. Move temperature-sensitive items to a cooler or secondary refrigerator until the issue is resolved. The freezer section may still be functional, but verify its temperature independently before trusting it with frozen food.
How do I fix the HI error code on my Frigidaire refrigerator?
Start by checking the simplest causes: make sure the fresh food door closes fully and the gasket seals all the way around, confirm the compartment is not overpacked blocking airflow, and clean the condenser coils if they are dusty. If HI persists after several hours, listen for the evaporator fan running inside the fresh food section and check for excessive frost buildup on the rear interior wall, which would point to a defrost system problem. A non-functioning evaporator fan or failed defrost component will require part replacement.
How much does it cost to repair the HI error code on a Frigidaire refrigerator?
Cost depends on the root cause. Cleaning condenser coils costs nothing beyond your time. A replacement door gasket typically runs $20 to $60 in parts and can be installed without special tools. An evaporator fan motor costs $30 to $80 in parts, with labor adding $100 to $150 if professionally installed. A defrost heater or thermostat replacement is in a similar parts range. If a sealed system component like the compressor is the underlying cause, repairs can exceed $400 and may make replacement more practical on an older unit.
Will the HI code clear on its own after the refrigerator cools back down?
Yes, on most Frigidaire models the HI alarm will clear automatically once the fresh food compartment temperature drops back below the threshold. If the code clears after the refrigerator recovers and does not return, the cause was likely temporary such as a door left open or a large batch of warm groceries loaded at once. If HI returns repeatedly without an obvious cause, the refrigerator has an underlying cooling or airflow problem that needs diagnosis.

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