F52 Moderate Moderate DIY

LG Oven F52 — Griddle sensor short

LG Oven · Error code F52

What F52 Means

Companion code to F51 — the griddle sensor reads shorted, indicating a damaged thermistor or wiring short.

Symptoms

  • F52 or F-52 on display
  • Griddle zone disabled
  • Code may follow a spill or aggressive cleaning

Common Causes

1
Shorted griddle thermistor

Sensor element shorted internally.

2
Wire insulation breakdown

Heat or pinch damage shorts the sensor pair.

3
Connector contamination

Spilled liquid bridged the pins.

4
Cooktop control board fault

Input reads short with sensor isolated.

How to Fix It

  1. Power down and access the cooktop underside.
  2. Disconnect the griddle sensor and measure resistance — short = replace.
  3. Inspect and dry the connector; clean any spill residue.
  4. Replace the sensor pigtail if insulation is damaged.
  5. If F52 stays with the sensor unplugged, replace the cooktop 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 LG griddle temperature sensor View on Amazon→

More LG Oven Codes

5b 5b — Sabbath Mode active (not a fault) CF1 CF1 — Left-front cooktop sensor open/short CF2 CF2 — Left-rear cooktop sensor open/short CF3 CF3 — Right-front cooktop sensor open/short CF4 CF4 — Right-rear cooktop sensor open/short F1 Range F1 — Upper Oven Thermistor Error

All LG codes → All oven codes →

Verified against manufacturer documentation: lgparts.com

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