ICP Control Board Kit for RGS150LEBA0AAAA — OEM 1183618 | Ships Today

Overview

This is the genuine OEM control board kit (part number 1183618) for the ICP / Tempstar / Heil RGS150LEBA0AAAA gas/electric rooftop unit. The integrated control board is the brain of the furnace section — it manages the ignition sequence, blower and inducer timing, safety lockouts, and communication between the thermostat and the gas valve. When this board fails, the unit will not fire, will short cycle, or will lock out on a fault code. This factory kit includes the board and the hardware needed for a direct replacement.

Specifications

Compatibility

Designed as a direct-fit replacement for the ICP family model RGS150LEBA0AAAA. ICP, Tempstar, Heil, and Comfortmaker units frequently share components, so confirm your model and serial against the unit rating plate before ordering.

Installation Guide

1. Safety First — Disconnect power at the unit disconnect and verify zero voltage with a multimeter.
2. Access — Remove the control/blower compartment service panel.
3. Document — Photograph every wire and connector on the existing board before disconnecting anything.
4. Remove — Unplug the harness connectors, remove the mounting screws/standoffs, and lift out the failed board.
5. Install — Mount the new board on the same standoffs and reconnect each harness exactly per your photos.
6. Test — Restore power and run a full heat cycle; confirm ignition, blower, and inducer operation with no fault codes.

Signs You Need a Replacement

• Unit will not start or fails to begin the ignition sequence
• Repeated lockouts or flashing diagnostic fault codes
• Blower or inducer motor running erratically or not at all
• Visible scorching, burnt traces, or failed relays on the board

Shipping & Returns

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