H2 Serious Moderate DIY

Frigidaire Refrigerator H2 — Fresh Food Thermistor Shorted

Frigidaire Refrigerator · Error code H2

What H2 Means

Fresh food thermistor reads as shorted (zero resistance). Board substitutes a default and runs cooling but flags the fault.

Symptoms

  • H2 displayed
  • Refrigerator runs cold or freezes food
  • Compressor runs longer than normal
  • Temperature setting has no effect

Common Causes

1
Shorted thermistor

Internal short to ground.

2
Pinched wire shorting to chassis

Wire grounded against metal.

3
Moisture intrusion at connector

Drain leak corrodes pins.

4
Main board input fault

Board sees a short on the input pin.

How to Fix It

  1. Unplug and access fresh food thermistor.
  2. Measure resistance — a near-zero reading confirms a short.
  3. Inspect harness for pinch points where it could short to the cabinet.
  4. Replace the thermistor if shorted.
  5. If sensor and harness are good, replace the main control board.

Parts You May Need

If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.

Common replacement Fresh food thermistor View on Amazon→

More Frigidaire Refrigerator Codes

1F 1F — Ice Maker Fault 1 SH 1 SH — Fresh Food Sensor Shorted 1 SY 1 SY — Fresh Food Sensor Open 2 SH 2 SH — Freezer Sensor Shorted 3 SH 3 SH — Evaporator Sensor Shorted 3 SY 3 SY — Evaporator Sensor Open

All Frigidaire codes → All refrigerator codes →

Verified against manufacturer documentation: frigidaire.com

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician.