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Frigidaire Refrigerator Codes: 77 77, SB, HI and DISP

October 26, 2026
Fairfield Appliance Team
8 min read

Quick Answer

Frigidaire fridge not cooling and showing 77 77? That is store demo mode, not a fault. Frigidaire's official code and alarm list explained.

If a Frigidaire refrigerator is not cooling and the display shows 77 77, the appliance is almost certainly fine. That is demo mode, the setting stores use for display units, and Frigidaire says it disables the functional components. Unplugging the unit for 5 minutes clears it.

That is the most expensive misunderstanding on this list, and it is not the only one. SB is Sabbath mode, a deliberate feature. Door Ajar and HI are alarms telling you a door was left open. The codes that genuinely need a technician are a smaller group.

Frigidaire refrigerator codes and alarms

DisplayWhat Frigidaire says it meansWhat to do
77 77Demo mode, used for store display units, with functional components disabledUnplug the unit for 5 minutes, then plug it back in.
SB SBSabbath mode. Frigidaire describes it as designed to make the appliance function with minimum power to conform with religious guidelines.Press and hold the minus and Temp F-C buttons together for 5 seconds to turn it on or off.
DI SP or DISPIce jam. Ice is stuck in the dispenser chute, and an alarm sounds when a cube has been stuck too long.Clear the jammed ice. If it continues, remove the ice bin, thaw and empty it, clean and dry it, and put it back.
H or HIHigh temperature. The refrigerator or freezer has been too warm for over one hour.Make sure all doors are fully closed and sealed.
Door AjarA door has been left open for over 5 minutesClose the door and the alarm should shut off.
PFPower failure. Frigidaire notes this indicates an outage or power surge, and that it can result in a high temperature alarm as well.Check the food, then clear the alert.
Beeping with the display litMay indicate a power failure or an errorUnplug the unit for 2 to 3 minutes to hard reset it.

Source: Frigidaire's refrigerator error codes and alarms guide. Frigidaire also notes that on four door models, codes in the Er CE and Er T1 to Er T6 range can mean an authorized service visit is required.

Demo mode is the one worth checking first

This deserves its own section because of how often it is misdiagnosed. Demo mode, sometimes called showroom or display mode, exists so a refrigerator can sit in a shop with its lights and display working while the compressor does nothing. Frigidaire's own description is that the functional components are disabled.

If that mode is still on when the fridge reaches your kitchen, everything looks normal. The panel lights up, the temperature setting responds, the interior light works. The food just never gets cold. People assume a sealed system failure and book a service call.

Check for 77 77 on the display before anything else, particularly if the refrigerator is newly delivered, was a floor model, or has just been moved. Frigidaire's fix is to unplug it for 5 minutes and plug it back in.

SB is Sabbath mode, not a fault

SB or Sb on the display means Sabbath mode is active. Frigidaire describes it as making the appliance run on minimum power to conform with religious guidelines, which typically means the display, lights and audible alerts behave differently.

It is easy to activate by accident, because the shortcut is a button combination: hold the minus and Temp F-C buttons together for 5 seconds. The same combination turns it off.

HI and Door Ajar: alarms about warmth

HI means the refrigerator or freezer has been too warm for more than an hour. Door Ajar means a door has been open for more than 5 minutes. Both usually have the same cause, which is a door that did not shut, often because a container or a drawer is holding it open a few millimetres.

When a Frigidaire fridge has been warm, deal with the food before the appliance. According to FoodSafety.gov, a refrigerator keeps food safe for about 4 hours with the door closed, a full freezer for about 48 hours, and a half full freezer for about 24 hours. The refrigerator should sit at 40 degrees Fahrenheit or below and the freezer at 0 degrees or below. Use a separate thermometer rather than trusting the panel.

DISP: an ice jam, not a broken ice maker

DI SP or DISP means a cube is stuck in the dispenser chute. Frigidaire's sequence is to clear the jam first, and if the problem continues, to remove the ice bin, thaw and empty it, clean and dry it, and reinstall it. Normal dispensing should resume once new ice is made.

Clumped ice is usually a sign the bin partly melted and refroze, which happens after a power cut or a door left open. If your ice maker has stopped producing entirely rather than jamming, that is a different problem, and our guide on an ice maker that is not working covers the water supply side.

How to reset a Frigidaire refrigerator

Frigidaire gives a clear order. If your model has a CLEAR ALERTS button, press that. Otherwise unplug the unit for 30 seconds and plug it back in. If you cannot reach the plug you can flip the breaker, and Frigidaire adds a sensible warning: that will reset everything else on the same circuit.

For the beeping with a lit display, the guide gives a longer hard reset of 2 to 3 minutes unplugged, and demo mode needs the full 5 minutes.

The 30 day rule

Frigidaire repeats a policy worth knowing across its appliances. If the unit was installed within the past 30 days and the problem is not resolved by these steps, it says to go back to your installer. Only units installed more than 30 days ago are directed to schedule service.

Getting it fixed

If you are in Fairfield or anywhere in Solano County, California, we can connect you with a local technician who works on Frigidaire refrigerators. Our refrigerator repair page explains how the referral works. If the fridge is still under the manufacturer's warranty, contact Frigidaire first, because sealed system work is usually covered.

Frequently asked questions

My Frigidaire refrigerator is not cooling and shows 77 77. Is it broken?

Probably not. 77 77 is demo mode, used for store display units, and Frigidaire says the functional components are disabled in that mode. Unplug the unit for 5 minutes and plug it back in.

What does SB mean on a Frigidaire fridge?

Sabbath mode, which runs the appliance on minimum power. Hold the minus and Temp F-C buttons together for 5 seconds to turn it off.

How do I reset a Frigidaire refrigerator?

Press CLEAR ALERTS if your model has it. Otherwise unplug for 30 seconds, or 2 to 3 minutes for a beeping display, or 5 minutes to clear demo mode.

What does HI mean?

The refrigerator or freezer has been too warm for over an hour. Check that all doors are fully closed and sealed, then check your food against the FoodSafety.gov timings.

What is DISP?

An ice jam in the dispenser chute. Clear the stuck ice, and if it keeps happening, remove the bin, thaw and empty it, clean and dry it, and refit it.

Related guides: Frigidaire oven and range error codes, Haier quad door refrigerator error codes, and Midea refrigerator error codes.

In Fairfield or elsewhere in Solano County, California?

Call (844)210-9286

We are a referral service. We connect you with an independent local refrigerator technician and do not perform repairs ourselves. Outside our area? Frigidaire customer support can point you to an authorized service provider near you.

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