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Leakage from LP tank valve (wrong cap)

Leakage of propane — Due to incorrect dust cap on tank valve

Weber · Spirit Grills

What does Leakage from LP tank valve (wrong cap) mean?

Propane may leak from the LP tank valve outlet if an incorrect or missing dust cap is used when the tank is not connected to the grill.

Common Causes

  • Using a dust cap or plug not provided with the tank valve
  • No dust cap installed on the tank valve

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Ensure that only the dust cap provided with the LP tank valve is installed when the tank is not in use.

  2. 2

    Remove any other types of caps or plugs that may be causing the leakage.

  3. 3

    If leakage is suspected or confirmed, follow the steps for 'Smell gas' immediately.

  4. 4

    Always store disconnected LP tanks outdoors in a well-ventilated area.

Browse all codes in this manual (18)
Verified technical data. Last updated: April 2026

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Source: Weber Spirit Grills
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