ICP Control Board Kit for RGS243SRAA0AAAA — OEM Replacement | Ships Today

Overview

This is a genuine OEM control board kit (part number 1183618) for the ICP/Tempstar/Heil RGS243SRAA0AAAA package unit. The integrated control board is the brain of the unit — it manages the ignition sequence, sequences the inducer and blower, monitors safety circuits and limits, and handles timing and diagnostics. As a complete kit it includes the board and the hardware needed for a direct replacement. When the board fails you may see no response on a call, blower or inducer that won't run, blinking diagnostic LED fault codes, or intermittent operation. Replacing a failed board restores correct, safe sequencing and clears nuisance lockouts.

Specifications

Compatibility

Directly fits the ICP/Tempstar/Heil RGS243SRAA0AAAA package unit. Confirm the board part number and connector layout against the unit's existing board before installation.

Installation Guide

1. Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter.
2. Access — Remove the control/electrical access panel.
3. Document — Photograph every plug, harness, and terminal on the old board before disconnecting.
4. Remove — Unplug each connector, remove the mounting screws/standoffs, and lift out the old board.
5. Install — Mount the new board, transfer each connector to the matching position per your photo, and set any jumpers/DIP switches to match.
6. Test — Restore power, run a full heat and cool cycle, and confirm correct sequencing with no fault codes on the diagnostic LED.

Signs You Need a Replacement

• No response from the unit on a heat or cool call.
• Blower or inducer motor won't start or runs continuously.
• Diagnostic LED flashing a control/hardware fault code.
• Intermittent operation, random lockouts, or burnt spots/relays on the board.

Shipping & Returns

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