Fisher & Paykel Reduced Heating Performance

Oven takes excessively long to preheat

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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

Partially failed bake element, One power leg missing, Weak relay contacts on control board, Door gasket leaking heat

How to Fix / Troubleshooting

Safety first: Disconnect power before testing electrical components.

  • Check elements: Observe whether both bake and broil elements heat during preheat (on some models). Replace any element that does not glow or has visible damage.
  • Door seal: Inspect the door gasket for gaps or tears. Replace if it does not seal evenly around the door.
  • Power supply: Verify full voltage at the terminal block. Low voltage can slow preheat.
  • Control relays: If elements and power are good, the control board relays may be failing to deliver full power and may need replacement.
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Repair Difficulty

Medium 3/5

Required Part

Oven Door Gasket
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