Description
The Fenwal 35‑655605‑013 Hot Surface Ignition Control Module is a high‑quality OEM replacement ignition control board engineered for dependable performance in gas‑fired HVAC and heating systems. Designed for use in furnaces, boilers, water heaters, and similar combustion appliances, this 24 VAC control module accurately manages ignition sequencing, flame sensing, and safety diagnostics to ensure consistent system operation and combustion safety.
Key Features
- OEM‑grade hot surface ignition control module designed for gas‑fired HVAC applications.
- Operates on 24 VAC with precise ignition sequencing and flame detection.
- Three ignition attempts with a 7‑second TFI cycle for dependable start‑ups.
- No pre‑purge stage for direct ignition responsiveness.
- 15‑second inter‑purge timing supports safe and efficient combustion control.
- Microprocessor‑based control logic and diagnostic LEDs help simplify service and troubleshooting.






