White-Rodgers 30A46-105 Flame Sensor

The White-Rodgers 30A46-105 Flame Sensor is a critical replacement component designed specifically for Cushion Power gas valves and high-performance furnace systems. Featuring a 12-inch plugin lead, this sensor ensures precise flame rectification by detecting the presence of a pilot or main burner flame and sending a microamp signal back to the integrated furnace control. This OEM-grade White-Rodgers sensor is engineered to withstand high-temperature combustion environments, preventing nuisance lockouts and ensuring reliable ignition sequences in residential and light commercial HVAC units. When diagnosing furnace ignition failures or short-cycling issues, replacing a fouled or cracked sensor with a genuine 30A46-105 is a standard protocol for maintaining system safety and operational efficiency. The plug-in connector simplifies field replacement, reducing labor time during service calls. Verified compatibility with White-Rodgers 30A46-105 models makes this the primary choice for technicians conducting HVAC flame sensor replacement on legacy equipment.

• Direct OEM Replacement: Designed specifically for Cushion Power gas valve applications to ensure exact fitment.
• Enhanced Durability: High-grade ceramic insulator prevents electrical leakage and thermal shock during rapid heating cycles.
• Optimized Signal Transfer: 12-inch lead with a secure plugin terminal provides a stable flame signal to the ignition module.
• Labor Efficiency: Pre-terminated connector allows for rapid field installation without the need for wire stripping or crimping.

Can I clean the 30A46-105 instead of replacing it?
While cleaning with a fine abrasive may temporarily restore the microamp signal, oxidation and ceramic degradation eventually require a full White-Rodgers flame sensor replacement to prevent intermittent system shutdowns.

What causes this flame sensor to fail?
Carbon buildup (soot) or a cracked ceramic insulator are the most common failure points, leading to a loss of flame rectification and causing the furnace to lock out after the initial ignition trial.

Is this sensor compatible with other gas valve brands?
The 30A46-105 is specifically engineered for systems utilizing the Cushion Power interface; always verify the cross-reference guide and lead length before installing on non-White-Rodgers equipment.

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.