Frigidaire Refrigerator HI Code: High Temperature Fix
Quick Answer
A Frigidaire HI code means the internal temperature is too warm, often caused by a door left ajar or a power outage. You can usually clear the alert by pressing the Alarm Reset or Set button once the refrigerator begins cooling down again.
Look, most of the time when I get called out for a HI code it's a door that was cracked open all night or a power outage. Easy fix. But ignore it and you're gambling with everything in the fridge, and if it's a failing fan motor or iced-up evaporator you can actually burn out your compressor. That's a $400-600 repair. Don't blow this one off.
OK so the HI code on a Frigidaire is one of those things that looks minor but can turn into a real problem fast. Nine times out of ten it's a door that didn't latch or a power outage and it clears itself. But I've also seen it come from condenser coils absolutely caked in pet hair, or a dead evaporator fan motor. A fan motor replacement runs about $150-200 with labor. Cleaning your coils yourself? Basically free. Worth knowing the difference.
Most Likely Causes
Based on aggregated repair data, here is the probability breakdown for this error code:
Door left open50%
Dirty condenser coils25%
Failed evaporator fan15%
Power outage10%
Symptoms You May Notice
The display is flashing HI and there's a beeping alarm that won't quit until you hit the reset button, sometimes going off every few minutes if the temp hasn't recovered.
Food in the freezer is soft or has that half-melted, refrozen texture where ice cream looks grainy and frozen meat gives when you press it.
The fresh food section feels noticeably warm when you open it, not cold, more like room temperature or just slightly cool.
Ice maker has completely stopped producing ice and the bin is just sitting there with old cubes slowly shrinking from sublimation.
Back wall of the freezer is coated in a solid thick sheet of frost or ice instead of just a light dusting, and you can't see the air vents at all.
Can you reset a Frigidaire refrigerator to clear the HI code?
Hit the Alarm Reset or Set button on the control panel once to silence the alarm and acknowledge the alert. If the fridge is still warm, the code may reappear until the cabinet drops below 55°F, which can take 2-4 hours. Don't keep mashing the button, just let it run. If it's still showing HI after 4-5 hours with the door properly shut, unplug the fridge for a full 5 minutes to hard-reset the control board, then plug it back in.
Tools Required for Diagnosis
Phillips #2 screwdriverFlat head screwdriverVacuum cleaner with brush attachmentCondenser coil cleaning brushDigital thermometerMultimeterWork gloves
Service / Diagnostic Mode
Press and hold the Freezer Temp Up and Fresh Food Temp Up buttons at the same time for 3 seconds until the display changes. Release and press either button to cycle through diagnostic tests. Not all Frigidaire models support this, so check your specific model's service sheet if you're not seeing a response.
Diagnostic Checklist
Follow these steps in order. We start with the easiest external fixes before opening up the machine.
ComponentComponent Under Test
Expected Range20–50 ohms
ConditionIf Open (OL) or infinite, replace component.
Frequently Asked Questions
How do I clear the HI code on my Frigidaire display?
Hit the Alarm Reset or Set button on the control panel once. On some models it's labeled differently or there's just a bell icon, so look around the panel if you don't see it right away. The beeping stops immediately when you press it. But here's the thing, if the fridge is still warm the code might come back until the cabinet actually cools down to below 55°F, and that can take 1-4 hours. Don't keep hitting reset over and over, it won't speed anything up. Just let it run with the door shut. If it's still showing HI after 4-5 hours, something mechanical is wrong.
Is my food safe to eat if the HI code appeared?
Honestly, it depends on how long the temperature was elevated. The danger zone for food is 40-140°F. If the fresh food section was above 40°F for more than two hours, dairy and raw meat are risky. The freezer's more forgiving, food can usually handle a few hours above 26°F without being completely ruined, but if things thawed and refroze you've got texture issues at minimum. I keep a cheap stick-on thermometer inside my fridge because the display isn't always accurate. When in doubt, throw it out, especially chicken, fish, and any leftovers that have been sitting for a while already.
Why did the HI code appear after a power outage?
When power comes back on, the control board checks the current cabinet temperature against the setpoint. If the temp climbed way past where it should be while the power was off, it fires the HI alarm to let you know the cold chain was broken. It's basically the fridge saying 'hey, something happened while you were gone.' This doesn't mean the fridge is broken at all, it's actually doing its job correctly. Press reset once and give it a few hours to cool back down. If your area gets frequent outages, a UPS battery backup for the fridge is worth considering to keep the compressor running through short outages.
Can dirty condenser coils actually cause the HI code?
One hundred percent yes, and it's way more common than people think. I pulled a fridge out of a house last month where the coils looked like a gray wool blanket, family had three dogs and hadn't moved the fridge in six years. The compressor was running so hot it was painful to touch. Dirty coils mean the heat from the refrigerant can't escape, so the compressor runs harder and hotter trying to compensate until it just can't keep the cabinet cold anymore. Clean those coils at minimum once a year. Every six months if you have pets. Takes like 15 minutes and it'll extend the life of your compressor significantly.
How long does it take for the HI code to go away?
Once you've fixed the actual cause, expect 2-6 hours for the fridge to pull back down to safe operating temps. The bigger and more loaded the fridge, the longer it takes. Don't crack the door repeatedly to check on it because every time you open it you're letting warm air in and basically resetting the clock. And don't load it with warm groceries from a store run while it's still trying to recover. That's a mistake I see people make all the time. Wait until the HI code has been off for at least a full hour before you trust it's back to normal operating temp.
What if the HI code keeps coming back even after the fridge is cold?
That usually means the control board has a stuck error or there's an intermittent issue causing the temp to spike briefly. First try the hard reset: unplug the fridge for 5 full minutes, then plug it back in. If it keeps returning every day or two, put a thermometer inside and actually log the temps at different times of day. You might be seeing brief spikes caused by a failing door gasket, a compressor that's short-cycling, or a defrost cycle that's running too long. At that point it's worth a service call because intermittent issues are hard to catch without actually monitoring the unit over time.
Models Known to Experience HI Errors
This repair applies to most Frigidaire refrigerators with this error code. Common model numbers include: