ICP Control Board Kit for RGS243HRAA0AAAA — OEM Furnace Control | Ships Today

Overview

This OEM control board kit is the brain of your ICP Tempstar Heil RGS243HRAA0AAAA gas furnace. The integrated furnace control manages the entire heating sequence — it reads the thermostat call, runs the inducer and pressure switch check, energizes the igniter, opens the gas valve, sequences the blower, and monitors flame and limit safeties. When the board fails you may see no response to a heat call, erratic blower behavior, repeated lockouts, or flashing diagnostic LED fault codes. This complete kit is a direct-fit replacement that restores full, safe furnace operation.

Specifications

Compatibility

Engineered for the ICP Tempstar Heil RGS243HRAA0AAAA gas furnace and related RGS243-series models. Confirm the board part number and connector layout match your existing control before installing.

Installation Guide

1. Safety First — Disconnect power at the furnace switch and breaker, then verify zero voltage with a multimeter.
2. Access — Remove the blower/control compartment service panel.
3. Document — Photograph every connector and wire harness position before disconnecting — this is critical for the many low- and line-voltage plugs.
4. Remove — Unplug all harnesses, release the board standoffs or screws, and remove the old board.
5. Install — Mount the new board and reconnect each harness exactly per your photos.
6. Test — Restore power and run a full heat cycle, confirming proper ignition, blower timing, and no fault codes.

Signs You Need a Replacement

• No response to a thermostat heat call
• Flashing diagnostic LED fault codes
• Erratic blower or inducer operation
• Repeated lockouts with no obvious cause
• Visible scorching or burnt components on the board

Shipping & Returns

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