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Nexgrill 720-0830H igniter

720-0830H electrode and collector diagnosis for the common Home Depot 4-main Nexgrill. Confirm the H suffix on the plate.

moderate PT1H \"720-0830H\" Updated 2026-09-04

Igniter electrode gap at a burner port Ceramic insulator, metal tip aimed at a burner port. Spark gap about the thickness of a nickel. SIDE VIEW · ELECTRODE GAP burner tube ports ceramic lead tip spark gap ≈ nickel ~1.8–2.1 mm to a port Tip aims at a port, not the tube wall. Cracked ceramic = replace.
Fig. — Electrode: ceramic, tip, burner port, ~nickel gap.
Two AA cells in the side-table battery well Underside of the left side table. Two AA batteries, polarity stamped in the well. UNDERSIDE · LEFT SIDE TABLE side table (from below) BATTERY WELL AA − + + AA − Two AA cells. Polarity is stamped in the plastic. Reverse = no click. Corroded springs: dry brush, not oil. Then new alkalines.
Fig. — Battery well under the side table. Two AAs. Match stamped polarity.

720-0830H is the widely sold 4-main. Ignition is spark ceramics into a battery box. Related: 0830H tubes, 0830H plates, generic Nexgrill igniter. Hub: Nexgrill.

Procedure

  1. Confirm 720-0830H including H.
  2. Lid open tick test.
  3. One burner quiet → that ceramic.
  4. No tick anywhere → battery / collector.
  5. Snap, no flame → gas path / regulator.
  6. Replace ceramic. Correct gap.
  7. Test lid open.
  8. Search Amazon/BBQGuys for 720-0830H igniter electrode — search-only pin.

FAQ

Weber kit?

No.

Not affiliated with Nexgrill.

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