Caple Burner Instability / Flame Lift

Gas hob makes loud popping or blowing noises when burners are on.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Incorrect gas pressure, Wrong injector size, Burner cap misaligned, Excessive primary air

How to Fix / Troubleshooting

Safety first: Turn off the burner if the flame appears to lift off the burner or blow away from the ports.

User steps:

  • Check that the burner cap is correctly seated and not rocking.
  • Clean burner ports and ensure there is no debris causing uneven flames.

Technician steps:

  • Measure gas inlet pressure and compare with Caple specifications.
  • Confirm correct injector sizes for the gas type.
  • Adjust primary air settings if adjustable burners are fitted.
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Repair Difficulty

Hard 4/5

Required Part

Gas Pressure Regulator
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