LG Oven F8 Error Code — What It Means
The F8 code reports a problem with the meat probe circuit, most often a short at the probe or the socket it plugs into. The probe lets the oven cook to an internal food temperature, and the control watches that circuit closely.
A short can come from a damaged probe, moisture in the socket, or a probe left plugged in when it should not be. The board trips F8 to stop a bad reading from driving the cook.
Common Causes
- Shorted meat probe A cracked or wet probe shorts its internal wiring and trips the code.
- Damaged probe socket Burnt or bent pins in the cavity socket short the circuit.
- Probe left plugged in A probe seated during a non probe cycle can confuse the control.
- Moisture in the socket Steam or cleaning water in the jack creates a false short.
- Socket wiring fault A pinched wire behind the socket shorts to the chassis.
Step-by-Step Fix
- Unplug the meat probe if it is inserted and retry the cook without it.
- Press CLEAR/OFF, then cut power at the breaker for 30 seconds and restore it.
- Inspect the probe for cracks, kinks, or melted insulation along the cable.
- Look into the cavity socket for burnt pins, debris, or moisture and dry it out.
- Test a known good probe in the socket to see if the code clears.
- Replace the probe if the new one works, or replace the socket if both probes fail.
- Restore power and run a probe cook to confirm F8 stays clear.
Parts Often Needed
| Part | Notes |
|---|---|
| LG oven meat probe | Amazon | Confirm the plug style matches your range model. |
| Meat probe socket (receptacle) | Amazon | Order if the in cavity jack shows burnt or bent pins. |
| Probe socket wire harness | Amazon | Replace only if the wiring behind the socket is pinched or shorted. |
When to Call a Pro
Call a technician if a known good probe still throws F8, since the fault is then in the socket or its wiring behind the oven liner. Reaching that socket means pulling panels, so a pro is the safer path if you are not set up for it.