Er10 displayed; grill temperature fluctuates wildly and food probe readings are erratic.

Safety first: Unplug the grill before handling internal electronics. The meat probe itself can be handled while the grill is on, but avoid hot surfaces.

• Inspect the meat probe: Check the stainless probe and cable for kinks, cuts, or melted insulation. If the cable has been pinched in the lid, it may be shorted.
• Test with no probe: Remove the meat probe from the jack. Power on the grill and see if Er10 clears. If it does, the probe is likely faulty.
• Try a known-good probe: If available, plug in a compatible Enders meat temperature probe and check for stable readings.
• Check probe jack: Inspect the probe jack on the control panel for debris or corrosion. Clean gently with compressed air or a cotton swab.
• Board input check: If multiple probes all read incorrectly, the probe input circuit on the control board may be damaged and the board will need replacement.

Do not continue cooking relying on a probe that triggers Er10; inaccurate readings can lead to undercooked food.