ICP Control Board Kit for RGS102LTBB0AAA — OEM Furnace Ignition Board 1183618 | Ships Today

Overview

This is a genuine OEM control board kit (part number 1183618) for the ICP Tempstar Heil RGS102LTBB0AAA gas furnace. The integrated furnace control board is the brain of the heating system: it manages the ignition sequence, monitors the flame sensor and pressure switch safeties, sequences the inducer and blower motors, and controls the 24V gas valve. When this board fails, the furnace will not start, will lock out after a few ignition attempts, or will short-cycle. Common failure symptoms include a blank or flashing diagnostic LED, no response to a thermostat call for heat, the inducer running but no ignition, or the blower running continuously. This kit replaces the original board and restores full control of the ignition and blower sequencing.

Specifications

Compatibility

This control board kit is engineered as a direct OEM replacement for the ICP Tempstar Heil RGS102LTBB0AAA gas furnace. ICP manufactures equipment under multiple labels (Tempstar, Heil, Comfortmaker, Arcoaire), so this board may also service equivalently configured models in those families. Always confirm the original board part number (1183618) or cross-reference printed on your existing board before ordering.

Installation Guide

1. Safety First — Disconnect power at the furnace switch and breaker, then verify zero voltage at the board with a multimeter before touching any wiring.
2. Access — Remove the furnace blower-compartment service panel to expose the control board.
3. Document — Take a clear photo of every wire and connector position on the existing board before disconnecting anything.
4. Remove — Unplug the wiring harnesses and molex connectors, remove the mounting screws or standoffs, and lift out the failed board.
5. Install — Mount the new 1183618 board, transfer each connector to the identical terminal per your photo, and confirm the harness clips are fully seated.
6. Test — Restore power, initiate a call for heat, and watch the diagnostic LED to confirm a normal ignition and blower sequence with no fault codes.

Signs You Need a Replacement

• Furnace does not respond to a thermostat call for heat.
• Inducer runs but the igniter or gas valve never energizes.
• System locks out after repeated failed ignition attempts.
• Diagnostic LED is dead, or flashes a hard-lockout / board fault code.

Shipping & Returns

Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.