Dinosaur Electronics FAN50PLUS Universal Igniter Board — Compact 3.35x4.25" with Built-in Fan Speed Control

The Dinosaur Electronics FAN50PLUS is a compact, microcontrolled universal igniter board that integrates programmable ignition sequencing with built-in fan speed control for reliable combustion appliance starts.

Designed as a drop-in control for furnaces, boilers and other gas-fired appliances, the FAN50PLUS combines ignition timing, safety interlocks and a multi-speed fan output in a 3.35" x 4.25" package. Its microcontroller-based logic gives consistent, repeatable performance while reducing installation complexity by replacing multiple legacy modules with a single board.

How does the FAN50PLUS simplify appliance ignition and fan coordination?

The FAN50PLUS centralizes ignition sequencing and fan management so installers don’t need separate timers or add-on fan relays. Its microcontrolled timing handles pre-purge, trial-for-ignition and post-purge intervals, while an integrated fan output stages blower operation in sync with burner events.

• Single-board solution replaces separate igniter and fan modules
• Built-in timing for pre-purge, ignition delay and post-purge
• Dedicated fan control output that stages blower operation

What are the physical and electrical details I should know?

The PCB measures 3.35" x 4.25", making it suitable for tight control compartments. As a microcontrolled unit, it uses solid-state logic to monitor inputs and drive outputs, minimizing mechanical wear and improving reliability over electromechanical timers.

• Compact 3.35" x 4.25" footprint fits common control locations
• Microcontroller-based circuitry for precise timing and diagnostics
• Standardized terminal layout for straightforward wiring

How does the FAN50PLUS improve safety and serviceability?

The integrated logic supervises ignition attempts and enforces lockout after failed trials, reducing unsafe conditions. Diagnostics inherent in microcontrolled boards make fault identification faster, so technicians can service systems more efficiently.

• Lockout behavior after repeated failed ignition attempts
• Consistent timing reduces false starts and nuisance faults
• Simplified troubleshooting thanks to predictable control sequences

What installation and compatibility considerations should I check?

Verify terminal labeling and mounting hole alignment before installing to ensure compatibility with your appliance. While the FAN50PLUS is a universal-style board, confirming gas valve, flame sensor and fan motor requirements prevents mismatches.

• Confirm terminal functions match the original control wiring diagram
• Check mounting hole spacing against control compartment dimensions
• Validate fan motor voltage/type and gas valve compatibility with outputs

Who is this for: The FAN50PLUS is aimed at HVAC technicians, service shops and informed DIYers who need a compact, reliable replacement igniter board with integrated fan control. It’s particularly useful when upgrading older systems for dependable ignition sequencing and streamlined wiring, or when consolidating multiple control functions into a single, microcontrolled module.