ICP Control Board Kit for RGS240STAA0AAAA — OEM Furnace Control | Ships Today

Overview

This OEM control board kit (part #1183618) is the electronic brain of the ICP/Tempstar/Heil RGS240STAA0AAAA gas/electric rooftop unit. It manages the heating sequence — igniter timing, gas valve activation, blower delays, flame sensing, and safety lockouts — while monitoring limit and pressure switches. A failed board produces erratic symptoms: no ignition, blower running continuously, intermittent operation, or diagnostic LED fault codes. Supplied as a complete kit with mounting hardware and instructions, this genuine OEM board restores correct furnace sequencing and built-in safety protection.

Specifications

Compatibility

Direct-fit replacement kit for the ICP/Tempstar/Heil RGS240STAA0AAAA gas/electric rooftop package unit and equivalent ICP-family units specifying this control board.

Installation Guide

1. Safety First — Disconnect power at the breaker and verify zero voltage with a multimeter.
2. Access — Remove the control-compartment service panel.
3. Document — Photograph every wire harness and connector position before disconnecting.
4. Remove — Unplug all harnesses, remove the mounting screws, and lift out the old board.
5. Install — Mount the new board with the supplied hardware and reconnect each harness per your photo and the kit instructions.
6. Test — Restore power, call for heat, and verify proper ignition sequence and blower operation with no fault codes.

Signs You Need a Replacement

• No response when the thermostat calls for heat
• Blower runs constantly or won't start
• Diagnostic LED flashing a fault/lockout code
• Intermittent operation or random shutdowns

Shipping & Returns

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