Frigidaire Refrigerator H or HI — What It Means & How to Fix It

Also shown as H, HI on some models.

By Callum Griffin · Researched and verified against manufacturer and repair documentation · Reviewed September 2026

H or HI is the high-temperature alarm — a compartment stayed too warm.

What this code means

Frigidaire's guide lists H/HI when a compartment exceeds ~55°F fresh / ~26°F freezer for an extended time. Causes: door left open, poor gasket, or cooling fault.

Frigidaire's own error-code guide says a blinking HI on the temperature display means the temperature is too high, usually after a door has been open too long. Displays vary between Frigidaire lines, so check your model's manual if the code looks different.

Most likely causes

CauseHow likelyDIY-fixable?
Door left open Very common Yes — close fully
Dirty / weak gasket Common Yes — clean
Cooling-system fault Less common No — technician

What you can try yourself

  1. Close doors firmly.
  2. Wipe gaskets clean; check for tears.
  3. Press CLEAR ALERTS to acknowledge.
  4. If alarm re-trips within hours, treat as cooling fault.

When to call a technician

Typical professional repair cost: Free if door/gasket; thermal diagnosis $200-400.

Frequently asked questions

How warm is too warm?

Frigidaire triggers at ~26°F freezer / ~55°F fresh-food for extended periods.

Sources checked

Error meanings can vary by model. This guide was checked against the documentation above; use the manual for the model number on your own appliance when it differs.

Related Frigidaire codes

More: all Frigidaire refrigerator codes · all Frigidaire codes · search by symptom