Fenwal 35-530501-003 Control

The Fenwal 35-530501-003 is a microprocessor-based 12VDC Direct Spark Ignition (DSI) control module designed for precise burner management in specialized heating applications. This rugged atmospheric ignition board is the direct replacement for 05-152436-053, though technicians should note the requirement to transition the high-voltage termination to a 1/4" spade connector. Engineered for efficiency in 12V DC environments—such as RV furnaces, mobile construction heaters, and asphalt hot boxes—this control operates with a 7-second trial for ignition (TFI) and features no pre-purge for immediate activation cycles.

Built with Detect-A-Flame technology, the module ensures reliable remote flame sensing and safety monitoring. The single-try ignition sequence provides a stable platform for battery-powered or solar-assisted combustion systems where power conservation is critical. The Fenwal 35-530501-003 includes on-board diagnostics via LED for rapid troubleshooting of airflow or ignition faults, and its conformal coating provides essential moisture resistance for demanding outdoor or mobile environments. This module is compatible with all standard gas types and maintains a 1.0 Amp gas valve rating at 12VDC.

Key Benefits:

• Optimized for 12VDC Systems: Perfect for RVs, mobile equipment, and battery-powered gas-fired appliances.
• Drop-in Compatibility: Functionally replaces obsolete 05-152436-053 and 35-530500-001 models (verify HV terminal).
• Diagnostic LED: Simplifies field service with clear flash codes for ignition lockout or hardware errors.
• Safe Start Logic: Microprocessor continually analyzes the flame and safety circuit to prevent hazardous startup conditions.
• Compact Enclosure: Includes an integrated Noryl gray enclosure for protection and easy mounting in tight mechanical spaces.

Common Questions:

What is the reset procedure after an ignition lockout?
Lockout recovery requires a manual reset; simply cycle the thermostat or remove the 12VDC power source for at least 5 seconds. If the call for heat remains after 60 minutes, the control features an automatic one-hour reset to attempt a new ignition cycle.

Can I use this for local flame sensing?
This specific 35-530501-003 model is configured for remote flame sensing. Ensure your electrode configuration matches the remote sensing requirements or contact technical support for terminal conversion details.

Is this module moisture resistant for outdoor use?
Yes, the board features a heavy conformal coating and is housed in a protective enclosure. However, it should be mounted in a location protected from direct water exposure or heavy condensation to maintain electronic integrity.

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.