Lochinvar & A.O. Smith 100208634 Ignition Cable

When the spark ignites and the system fails to fire, the Lochinvar & A.O. Smith 100208634 Ignition Cable is the direct OEM replacement part required to restore circuit continuity between the ignition control board and the burner electrode. This high-voltage 7mm silicone ignition wire is engineered to withstand the extreme thermal cycling found in residential and commercial water heater and boiler environments. It serves as an identical replacement for part numbers WRE2030 and WRE2030K, ensuring a precision fit without the need for field modifications. In high-efficiency systems like the Lochinvar RW or Copper-Pak series, maintaining a clean, high-voltage pulse is non-negotiable for reliable combustion and preventing lockout codes. This boiler ignition cable features high-dielectric insulation to prevent voltage leakage and electromagnetic interference, which can otherwise disrupt sensitive control logic. For contractors, using this 100208634 spark wire means ensuring the equipment operates to its original factory specifications for safety and performance.

Key Benefits

• OEM Compatibility: Precision-engineered for a secure connection to the Lochinvar 100208634 and A.O. Smith spark electrode assemblies.
• High-Temperature Durability: The 7mm silicone jacket is rated to resist breakdown in high-heat zones, preventing brittle cracking and ground faults.
• Direct Cross-Reference: Fully interchangeable with WRE2030 and WRE2030K, simplifying truck stock and part identification.
• Optimized Conductivity: Designed to carry the full secondary voltage pulse required for consistent arc generation in the combustion chamber.

Common Questions

Is this cable compatible with my specific boiler?
The 100208634 is widely used in the Lochinvar RW and Copper-Pak series. Always verify your specific model and serial number to ensure the connector ends match your existing igniter and module.

Can I use a generic automotive spark plug wire instead?
No. HVAC ignition cables are specific to the voltage profile and current requirements of heating systems. Using non-specified wire can lead to control board damage or unsafe ignition delays.

Why should I replace the cable if the igniter looks fine?
Silicone insulation can develop microscopic "pinhole" leaks over time. If you hear the transformer clicking but see no spark at the burner, the voltage may be jumping to ground through a degraded ignition cable.

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.