If your Frigidaire refrigerator only has one dial in the refrigerator section and it's labeled with "cold" on the left and "coldest" on the right, it likely means that this single dial controls both the refrigerator and freezer temperatures together. In some models, adjusting the dial will affect the temperature in both compartments.
To adjust the freezer temperature, you'll need to find the right balance with the single dial. Here's how you can try to set the freezer temperature to a more appropriate level:
Locate the dial: The dial is usually located inside the refrigerator section. It might be located near the top, bottom, or on one of the side walls.
Gradually turn the dial: Start by turning the dial slightly towards the "warmer" or "cold" side (towards the left) to increase the temperature. Make small adjustments and give the appliance some time to stabilize at each setting.
Check the temperature: You can use a separate refrigerator/freezer thermometer to monitor the temperature in the freezer section. Allow the appliance to run for a few hours after each adjustment before checking the temperature.
Fine-tune the setting: Keep adjusting the dial as needed until you reach the desired freezer temperature.
If you find that the freezer remains too cold even at the lowest setting of the dial, there may be an issue with the temperature control system or a faulty thermostat. In such cases, it's best to consult the refrigerator's user manual or contact Frigidaire's customer support for specific guidance on your model. They can provide you with troubleshooting steps or arrange for a service technician to inspect and repair the appliance if necessary.