533128 Genuine Semi-Rapid (SR) Burner Injector 0.70 LPG for Fisher & Paykel Gas Cooktops, Replacement Gas Jet Nozzle

Part 533128 is a genuine Fisher & Paykel gas injector for the semi-rapid (SR) burner on a cooktop running on LPG. Sized at 0.70, it is the small threaded jet that sets how much gas flows into that burner. There is no model list on file for this number, so match 533128 or the 0.70 size against your old injector, or send the model number from the cooktop's data label through the parts enquiry form.

How an LPG burner injector works and when to replace it

Every gas burner has an injector at its base. Gas from the valve passes through a tiny drilled hole in the injector, mixes with air in the burner body and burns at the cap. The hole is sized to suit the gas type and the burner's output, which is why an LPG jet has a smaller opening than a natural gas jet for the same burner. A blocked or damaged injector gives a weak, uneven or lifting flame, yellow tips, sooty pans or a burner that is hard to light. Injectors are also changed when a cooktop is converted from one gas type to another.

Part details

• Genuine Fisher & Paykel part 533128
• Injector size 0.70
• Made for the semi-rapid (SR) burner position
• For LPG only, not natural gas

Fitting a gas injector safely

Gas work in Australia must be done by a licensed gas fitter. Turn off the gas supply and switch the cooktop off at the wall before starting. The injector sits under the burner and comes out with the correct size socket once the cap, crown and, on some models, the top panel are lifted away. Fit it to the semi-rapid position only, then leak test the joint and check the flame.

Questions about this part

Can I use this injector on natural gas?

No. 533128 is sized for LPG. Natural gas needs a different injector size, and converting a cooktop from one gas type to the other can involve other adjustments too, so it must be done by a licensed gas fitter.