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Supco IG408 Furnace Ignitor

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5 5 1
1  Review Add Your Review
Special Price $28.35 Regular Price $36.85
In stock
SKU
IG408
The Supco IG408 Hot Surface Ignitor is a component used to start the burner by heating to ignite gas in the startup cycles in HVAC systems. This element of the system is applied in commercial and residential furnaces, whereby safe heating operation requires controlled ignition. Its design is to work in normal temperature conditions, which assists in maintaining the flame activation and supports controlling the combustion cycles. This component of the ignition assembly is an essential requirement in ensuring the system is controlled properly, misfires are minimized and the heating output is stable.
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HVAC Furnace Parts, Ignitors
Manufacturer:
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Manufacturer Name: Supco
Product Number: IG408
OEM Part Number: IG408
Product Description: Furnace Ignitor
Weight:0.17lbs/77.11g

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Product Questions (2)
Customer Questions
What maintenance is required for the Supco IG408 Furnace Ignitor?

Keep the ignitor surface clean and free from dust, oil, or debris that can interfere with heating performance. Inspect mounting brackets to ensure the element is secure and properly aligned with the burner. Check wiring connections for tightness and avoid handling the ceramic element directly to prevent damage.

What are common issues with the Supco IG408 Furnace Ignitor?

  • No heat or failure to glow during ignition.
  • Intermittent startup or delayed ignition.
  • Electrical connection looseness or burnout.
  • Premature wear from vibration or misalignment.
  • Contamination causing weak ignition performance.

Installation Steps

Step 1: Turn off electrical power and gas supply to the furnace, verify zero voltage and allow components to cool completely before handling.

Step 2: Remove furnace access panel and locate the existing ignitor assembly near the burner.

Step 3: Disconnect wiring harness carefully, avoiding any contact with the fragile igniter element.

Step 4: Remove mounting screws and gently extract the old ignitor without touching the surface.

Step 5: Install the new ignitor, securing it in the same position and reconnecting terminals firmly.

Step 6: Restore power and gas, then test ignition cycle for proper glow and burner startup.