Description
The Fenwal 35‑665036‑111 Hot Surface Ignition Control Module is a high‑performance OEM ignition control board engineered for reliable ignition and safety in gas‑fired HVAC systems. Designed for use in furnaces, boilers, water heaters, and unit heaters, this 24 VAC control module provides precise ignition sequencing, integrated flame sensing, and advanced safety monitoring to help ensure efficient combustion and dependable system start‑ups.
Key Features
- OEM‑grade Fenwal hot surface ignition control module for gas‑fired HVAC applications.
- Operates on 24 VAC with accurate ignition sequencing and flame detection.
- 15‑second pre‑purge and 4‑second Trial‑For‑Ignition (TFI) timing for dependable burner start‑ups.
- Three ignition attempts before lockout increase ignition success rates.
- Built‑in combustion blower relay control with 60‑second post‑purge enhances safety and airflow management.
- Microprocessor‑based control and LED diagnostics simplify installation, service, and troubleshooting.
- Ideal replacement part for failing or outdated ignition control boards in residential and commercial gas heating systems.
