Refrigerator Running Too Warm or Too Cold? Fresh Food Thermistor 5303918775 — Fix Temperature Problems Fast

When your Frigidaire refrigerator's fresh food section won't hold the right temperature — running too warm, too cold, or cycling erratically — a failed NTC thermistor is the most common cause. In most Frigidaire and Electrolux refrigerators, the fresh food thermistor continuously monitors compartment temperature and sends that signal to the main control board. When it fails or drifts out of spec, the control board receives incorrect readings and can't regulate the cooling cycle properly. ⚡ Common failure point in Frigidaire-built refrigerators. Part 5303918775 is the genuine OEM NTC thermistor that restores accurate temperature sensing and stable cooling performance.

❓ Is This the Right Part?

This is the correct fix if ALL of the following are true:

• ✔ Refrigerator powers on and compressor runs
• ✔ Freezer section is holding temperature correctly
• ✔ No error codes pointing to control board failure
• ✔ ONLY problem is fresh food section temperature — too warm, too cold, or inconsistent

Not sure? Send us your model number — we'll confirm before you order.

🔧 Common Symptoms

• Fresh food compartment too warm despite correct thermostat setting
• Refrigerator overcooling — food freezing in the fresh food section
• Compressor running constantly or short-cycling
• Erratic temperature swings throughout the day
• Error code on display related to temperature sensor

✔ If these symptoms match, this is the most likely failed component in the system.

✔ In most cases, replacing this thermistor restores stable temperature control immediately.

📦 Part Details

• Part Number: 5303918775
• Type: NTC Thermistor — Fresh Food Compartment Temperature Sensor
• Replaces: 216782300, AP3770086, PS900213, EAP900213, 1060767
• Brands: Frigidaire, Electrolux

⚙️ Installation

Skill Level: Easy — 15 to 20 minutes. Disconnect power before servicing. Locate the thermistor on the back wall or ceiling of the fresh food compartment — it is typically clipped into a bracket and connected by a 2-wire harness. Unclip the old sensor, disconnect the harness, connect the new thermistor, and clip it into place. Restore power and monitor temperature over the next 2–4 hours to confirm stable readings.

✓ Compatible Models

Confirmed compatible with a wide range of Frigidaire and Electrolux refrigerators including FRS, FFSS, FFTR, GLRS, and Electrolux EI and EW series models. Contact us to verify your model number before ordering.

💡 Pro Tip