Error code · Cooktop

LG Cooktop Code F52: Griddle Sensor Short Detected

Medium · inspection needed

Code: F52
Appliance: Cooktop
Brand: LG
Warranty: 30-day workmanship

What F52 means

F52 appears on LG induction and radiant cooktops and ranges with a griddle zone, and it reads Griddle Sensor Short was detected. The control sees the griddle sensor circuit as shorted. The owner sees F52, and the griddle zone may stop heating while the other zones keep working. This entry is separate from the general griddle sensor error, and it points to the sensor circuit rather than to the heating of the griddle itself.

Common causes of F52

Griddle sensor circuit shorted
Sensor wiring or connector damaged
Control board input for the griddle sensor

✓ One safe check you can try

1. Let the cooktop cool and remove any griddle plate or cookware. 2. Flip the breaker off, count to 30, and flip it back on. 3. Try the griddle zone again at a low setting. 4. If F52 returns, keep the griddle off and arrange service.

! Why to stop there

If F52 comes back, we test the sensor circuit with the cooktop cold and the power off.
We check the wiring and connector at the sensor.
We quote the repair in writing before we start.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

→Same appliance

Other Cooktop codes

F3LG Cooktop Code F3: Touch Pad Key Sensor F33, F34LG Cooktop Codes F33 and F34: Front Induction Burner Sensor F51LG Cooktop Code F51: Griddle Sensor Reading F56LG Cooktop Code F56: Griddle Heating Problem F59LG Cooktop Code F59: Griddle Not Heating Properly F62LG Cooktop Code F62: Sous Vide Temperature Sensor F69LG Cooktop Code F69: Sous Vide Heating Problem H5LG Cooktop Code H5: Hot Surface Indicator

F52F52 questions

What is a sensor short?

The sensor circuit reads as if its two sides are connected, so the control cannot read a real temperature. That condition is what the control reports as F52.

Does F52 mean the griddle is overheating?

No. The code concerns the sensor circuit, not an overheat reading. Heating is a separate entry, F56, so we look at each one on its own.

Why switch the breaker off for 30 seconds?

A short interruption lets the control restart. If the shorted reading was momentary, the code stays away. If it returns, the circuit needs a proper test.

Book a visit

Still seeing F52?

A technician diagnoses it on site and gives you the price in writing before any work starts.

(713) 597-5662