The Copeland 789A-956A1 is a 120V hot surface ignitor (HSI) designed for dependable ignition in gas-fired furnaces. Built with durable silicon nitride, this ignitor offers superior resistance to thermal shock and a longer service life compared to traditional silicon carbide designs. It is engineered as a direct replacement for select York furnace models, ensuring consistent ignition performance and reliable system operation. The 789A-956A1 is well-suited for residential HVAC service and replacement applications where durability and performance are critical.
Key Features
- 120V hot surface ignitor for gas furnace applications
- Silicon nitride construction for improved durability and longevity
- Designed as a replacement for select York furnace systems
- Provides fast, consistent ignition performance
- Resistant to thermal shock and cracking vs. carbide ignitors
- Ideal for residential HVAC service and maintenance
- OEM-grade quality from Emerson / White-Rodgers
