Display shows “Er4” and grill shuts down or will not start.

Safety first: If you suspect a grease fire, keep the lid closed, turn the grill OFF, and unplug it. Do not open the lid until flames subside. Keep a Class B fire extinguisher nearby.

• 1. Allow grill to cool completely:
  • Leave the lid closed until the grill is cool to the touch.
• 2. Clean out grease and ash:
  • Remove grates, drip tray, and heat baffle.
  • Vacuum ash from the firepot and bottom of the barrel.
  • Scrape heavy grease from drip tray and interior surfaces.
• 3. Inspect RTD probe:
  • Check that the RTD is not coated in heavy grease or soot, which can cause false readings.
  • Wipe the probe gently with a damp cloth.
• 4. Restart procedure:
  • With the grill clean and cool, plug it back in.
  • Start on SMOKE or lowest setting and monitor temperature rise.
• 5. If Er4 recurs at normal temps:
  • Test or replace the RTD probe.
  • If a new RTD does not resolve it, the controller may be misreading and should be replaced.