533890 Genuine Inner Burner Cap for Fisher & Paykel Gas Cooktops, Dual Wok Burner Centre Cap Replacement

A Fisher & Paykel dual wok burner has two flame rings, and 533890 is the genuine inner cap that sits on the centre ring. It spreads the gas into an even ring of flame and protects the burner head underneath. Caps get lost, chipped and warped over time, and the outer cap is a different part, so check the number or your cooktop's model number and product code before you order.

Uneven wok burner flame? Check the inner cap

The cap sits on top of the burner head and shapes the flame. If it's cracked, warped from heat, badly corroded or sitting crooked, the flame can lift, burn yellow, flare out on one side or fail to light from the igniter. A missing inner cap leaves the centre of the wok burner unusable and can let food and liquid drop into the gas outlet. Before replacing it, clean the burner ports and make sure the cap is seated properly, since a misaligned cap gives similar symptoms.

Part details

• Genuine Fisher & Paykel part 533890
• Inner cap for the dual wok burner
• For Fisher & Paykel gas cooktops
• Inner cap only

Fitting the new cap

Make sure every burner is off and the cooktop has fully cooled. Lift off the trivet and the old cap, then wipe the burner head and clear any blocked ports with a soft brush, never a sharp tool. Seat the new inner cap so it sits flat and centred with no rocking. Light the burner and check for a steady blue flame all round. If the flame is still poor, have a licensed gas fitter inspect it.

Questions about this part

Can I use the cooktop without the inner cap?

No. Without its cap the burner can't form a proper flame, and food or liquid can fall into the burner. Leave that burner off until the new cap is fitted, and use the other burners in the meantime.