Luxaire Ignition Sequence Interruption

Inducer motor runs but burners do not light; no error code displayed.

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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

Faulty pressure switch not signaling closed, Loose ignitor wiring, Faulty control board timing, Weak ignitor

How to Fix / Troubleshooting

Safety: Turn off power and gas before inspecting ignition components.

Steps to check:

  • Observe sequence: Through the sight glass, confirm whether the ignitor glows after the inducer starts. If not, check ignitor wiring harness.
  • Inspect pressure switch tubing: Ensure tubing is intact and connected; a switch that does not close will prevent ignition.

A technician should test pressure switch operation, ignitor voltage, and control board outputs.

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Repair Difficulty

Hard 4/5

Required Part

Pressure Switch or Hot Surface Ignitor
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