**NOTICE**All repairs should be performed by a certified technician. Southern Pride of Texas® is not liable for any damages, or injury if you choose to attempt repairs on your own.When dealing with high voltage, and moving drive systems there is a risk of extreme injury, or even DEATH.

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Southern Pride Smoker Gas Burner – Diagnostic Procedure

⚠️ Safety Warning: This procedure involves live electricity (120V & 24V AC), high-voltage ignition spark, and gas supply under pressure. Use proper PPE, ignition-safe tools, and extreme caution.

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Step 1 – Burner Blower Induction Motor

Does the burner blower induction motor turn on?

• Yes → Move to Step 2.

• No →

  1. Check for 120V AC coming into the burner assembly from the smoker wall.

     • If no 120V → Refer to “No Power to Burner” Guide.

     • If 120V present but blower does not run → Replace burner blower motor.

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Step 2 – Transformer / Ignition Module Input

Check for 24V AC across the two yellow wires at the ignition control module.
(You may disconnect wires and place meter leads on wire ends if needed.)

• Yes (24V present) → Move to Step 3.

• No (no 24V) →

  • Trace the yellow wires back to the transformer inside the metal box.

  • Test for 24V directly at the transformer’s yellow wires:

    • If 24V present at transformer → Replace burner blower motor.

    • If no 24V at transformer → Replace transformer.

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Step 3 – Ignition Module (White & Blue Terminals)

Check for 24V AC across white and blue terminals on the ignition module.
(Disconnect wires and test directly on terminals if needed.)

• Yes (24V present) → Move to Step 4.

• No (no 24V) → Replace ignition control module.

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Step 4 – Pilot Flame

Since you have 24V across the white and blue, you should have a pilot flame.

• If the pilot lights → Move to Step 5.

• If no pilot flame →

  1. Attempt to light the pilot manually with a long lighter or rolled piece of paper.

     • If the pilot lights manually → You either have a faulty igniter or ignition control module.

       • Test ignition control module:

         • Disconnect the high-voltage orange wire from the ignition control module.

         • While calling for heat, hold the cable close to the connector and see if it arcs.

         • ⚠️ High Voltage Warning: Perform this test with extreme care.

           • Southern Pride of Texas is not liable for damages.

           • This test should only be performed by a licensed technician.

           • If it arcs → Replace high-voltage lead and igniter.

           • If it does not arc → Replace ignition control module.

     • If the pilot does not light manually →

       • Disassemble burner assembly and blow out the pilot tube to ensure no obstructions.

       • If still no flame → Check gas supply with a manometer:

         • Natural Gas: 4.5"–10" WC

         • LP Gas: 11"–13" WC

         • If supply pressure is good → Replace gas valve.

         • If supply pressure is low → Check and/or replace gas regulator.

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Step 5 – Ignition Module (White & Red Terminals)

Check for 24V AC across white and red wires on the ignition control module.
⚠️ Wires must remain connected during testing. (You may also test on gas valve side if needed, but wires must stay connected.)

• Yes (24V present) → Move to Step 6.

• No (no 24V) →

  • Possible causes: Faulty igniter or bad ignition control module.

  • Test flame sensing:

    • Use a multimeter across FC+ and FC- terminals on the ignition control module.

    • Look for ~1.5 microamps (±10%).

      • If reading is correct → Replace ignition control module.

      • If reading is low or not present → Replace igniter.

    • Older black Honeywell modules: No FC+ / FC-.

      • Instead, disconnect green ground wire from gas valve.

      • Bridge gap with meter leads and check for ~1.5 microamps flame sense.

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Step 6 – Main Burner Operation

At this point, the main burner should light.

• If main burner does not light →

  • Possible issues:

    • Obstruction in main burner tube

    • Gas/air mixture issues

    • Faulty gas valve

    • Gas supply regulator issues

  • Check supply pressure with manometer:

    • Natural Gas: 4.5"–10" WC

    • LP Gas: 11"–13" WC

  • If pressure correct, air/gas ratio correct, and no obstruction in main burner tube → Replace gas valve.

  • If pressure incorrect → Replace gas regulator.

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✅ End of Diagnostic Procedure