LG · Oven Moderate

F52 — Griddle sensor short

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

Keep using it?
Yes, with caution
DIY difficulty
Moderate
Verified against
lg.com ↗

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.

Why it happens

Typical signs: F52 or F-52 on display · Griddle zone disabled · Code may follow a spill or aggressive cleaning

  • Shorted griddle thermistor Sensor element shorted internally.
  • Wire insulation breakdown Heat or pinch damage shorts the sensor pair.
  • Connector contamination Spilled liquid bridged the pins.
  • Cooktop control board fault Input reads short with sensor isolated.

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.

  • LG griddle temperature sensor Common replacement
    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 — Rear Cooktop Sensor Error (Zone Varies by Model) F1 Range F1 — Upper Oven Thermistor Error

All LG codes → All oven codes →

Frequently asked questions

What does the F52 code mean on a LG oven?

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

What causes the F52 code on a LG oven?

Shorted griddle thermistor: Sensor element shorted internally. Wire insulation breakdown: Heat or pinch damage shorts the sensor pair. Connector contamination: Spilled liquid bridged the pins.

Is it safe to keep using a LG oven with a F52 error?

Yes, with caution. This is rated a moderate-severity fault.

How do I fix F52 on a LG oven?

Power down and access the cooktop underside. Disconnect the griddle sensor and measure resistance — short = replace. Inspect and dry the connector; clean any spill residue.

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician. Verified against manufacturer documentation: lg.com.