Written by
Daniel Reyes Appliance SpecialistPublished October 20, 2026
Error codeH / HI
ApplianceRefrigerator
Quick answer
A blinking H or HI on a Frigidaire refrigerator signals high temperature for over an hour, often from a door left open.
Model compatibility: Frigidaire reuses codes across series and model years, so H / HI may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
High temperature: refrigerator or freezer too warm for over an hour, with a blinking temperature and a tone.
On Frigidaire refrigerators the high-temperature alert shows as H or HI. A blinking HI on the refrigerator temperature, with a tone, means the refrigerator or the freezer has been too warm for over an hour. It is usually triggered when a door has been left open too long.
What to check
Make sure the doors are fully closed and properly sealed. If the alert stays, Frigidaire’s general reset applies on many models: unplug the unit for 30 seconds and plug it back in, or flip the breaker at the fuse box if you cannot reach the plug. A breaker reset affects everything else on the same circuit, and your use and care guide has model-specific details.
Door open alarm
A separate door ajar tone sounds once a door has been open for over 5 minutes. Closing the door should shut that alarm off.
Related codes
PF – a power outage, which can also lead to a high temperature alarm
OP – an open thermistor shown in the FF or FZ position
SH – a shorted thermistor in the same display positions
Frigidaire refrigerator service in Los Angeles
If H or HI returns even though the doors close and seal, call (310) 861-3938 for Frigidaire refrigerator repair in Los Angeles. Say which compartment is warm and what you have already tried.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your Frigidaire appliance?
Book a specialist visit for a clear estimate and approval before any repair.
