
Carrier LH33WZ010 Ignitor
The Carrier LH33WZ010 Ignitor is a high-performance direct spark ignition (DSI) electrode assembly specifically engineered for heavy-duty Carrier, Bryant, and Payne gas-fired equipment. As a veteran-requested OEM replacement part, this component ensures immediate fuel-to-air combustion, preventing delayed ignition cycles and pilot outages in residential furnaces and light commercial boilers. The LH33WZ010 is built with a high-grade ceramic insulator and a robust metal electrode tip designed to withstand the intense thermal stress of constant spark cycles. This gas furnace ignitor features a precise spark electrode with wire configuration to minimize electrical resistance and ensure a consistent arc across the burner face. For technicians in the field, this hot surface ignitor alternative simplifies troubleshooting by maintaining 120V system integrity and reducing nuisance lockouts. Whether you are performing seasonal maintenance or an emergency service call, utilizing genuine HVAC replacement parts like this assembly ensures the burner sequence remains within factory specifications for timing and safety.
Key Benefits- Precise Ignition Sequence: High-energy spark discharge ensures reliable burner light-offs, reducing unburned gas accumulation.
- OEM Compatibility: Engineered for seamless integration with Carrier heating systems, maintaining the original equipment’s UL/CSA rating.
- Durable Construction: Heavy-duty ceramic insulation prevents voltage leaks and arcing to the chassis.
- Optimized Efficiency: Promotes cleaner combustion cycles, which helps maintain system performance and fuel economy.
- Simplified Field Replacement: Comes with pre-determined lead lengths/connectors for faster installation during service calls.
Is the Carrier LH33WZ010 compatible with all 120V gas furnaces?
No, this is a specific spark electrode assembly. While many Carrier-brand units utilize 120V systems, you must verify the part number against your model’s technical data sheet to ensure the lead wire and mounting bracket orientation match.
Can I use this LH33WZ010 to replace a standard silicon carbide hot surface ignitor?
No. This part is designed for systems utilizing spark ignition. Retrying to cross-utilize spark electrodes with silicon carbide HSI controls will lead to control board failure and ignition lockout.
What causes a spark electrode like the LH33WZ010 to fail?
Primary failure points include cracked ceramic insulation due to vibration, carbon soot buildup (sooting) on the electrode tip, or high-resistance wire degradation that prevents a strong arc from forming.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $103.57
-65%$103.57
$36.25Product Information
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Description
The Carrier LH33WZ010 Ignitor is a high-performance direct spark ignition (DSI) electrode assembly specifically engineered for heavy-duty Carrier, Bryant, and Payne gas-fired equipment. As a veteran-requested OEM replacement part, this component ensures immediate fuel-to-air combustion, preventing delayed ignition cycles and pilot outages in residential furnaces and light commercial boilers. The LH33WZ010 is built with a high-grade ceramic insulator and a robust metal electrode tip designed to withstand the intense thermal stress of constant spark cycles. This gas furnace ignitor features a precise spark electrode with wire configuration to minimize electrical resistance and ensure a consistent arc across the burner face. For technicians in the field, this hot surface ignitor alternative simplifies troubleshooting by maintaining 120V system integrity and reducing nuisance lockouts. Whether you are performing seasonal maintenance or an emergency service call, utilizing genuine HVAC replacement parts like this assembly ensures the burner sequence remains within factory specifications for timing and safety.
Key Benefits- Precise Ignition Sequence: High-energy spark discharge ensures reliable burner light-offs, reducing unburned gas accumulation.
- OEM Compatibility: Engineered for seamless integration with Carrier heating systems, maintaining the original equipment’s UL/CSA rating.
- Durable Construction: Heavy-duty ceramic insulation prevents voltage leaks and arcing to the chassis.
- Optimized Efficiency: Promotes cleaner combustion cycles, which helps maintain system performance and fuel economy.
- Simplified Field Replacement: Comes with pre-determined lead lengths/connectors for faster installation during service calls.
Is the Carrier LH33WZ010 compatible with all 120V gas furnaces?
No, this is a specific spark electrode assembly. While many Carrier-brand units utilize 120V systems, you must verify the part number against your model’s technical data sheet to ensure the lead wire and mounting bracket orientation match.
Can I use this LH33WZ010 to replace a standard silicon carbide hot surface ignitor?
No. This part is designed for systems utilizing spark ignition. Retrying to cross-utilize spark electrodes with silicon carbide HSI controls will lead to control board failure and ignition lockout.
What causes a spark electrode like the LH33WZ010 to fail?
Primary failure points include cracked ceramic insulation due to vibration, carbon soot buildup (sooting) on the electrode tip, or high-resistance wire degradation that prevents a strong arc from forming.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.











