ICP Furnace Control Board for RGS213SRAA0AAAA — OEM Kit 1183618 | Ships Today
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Overview
This genuine OEM control board kit (part number 1183618) is the electronic brain of the ICP / Tempstar / Heil RGS213SRAA0AAAA gas furnace. The integrated furnace control board manages the entire heating sequence: it powers the inducer, runs pre-purge, energizes the igniter, opens the gas valve, proves the flame, and times blower on/off delays. It also reads the thermostat 24V call, monitors safety limits and pressure switches, and flashes diagnostic fault codes through its onboard LED. When the board fails, the furnace may be completely dead, stall partway through a sequence, run the blower constantly, or throw erratic flash codes — making it one of the most consequential parts in the system.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1183618 |
| Type | Integrated Furnace Control Board (Kit) |
| Brand | ICP (Tempstar / Heil) |
| Control Voltage | 24 VAC |
| Diagnostics | Onboard LED fault codes |
| Fitment | OEM Replacement Kit |
Compatibility
Built for the ICP RGS213SRAA0AAAA and used across matching Tempstar, Heil, Comfortmaker, and Arcoaire furnaces that call out this control board kit. Verify the board's connector layout and part number against your existing board before installing.
Installation Guide
- Safety First — Disconnect power at the breaker and verify zero voltage at the board with a multimeter.
- Access — Remove the furnace control/blower compartment service panel.
- Document — Photograph every harness plug and terminal location before unplugging anything.
- Remove — Unplug the wiring harnesses, release the standoffs or screws, and lift out the old board.
- Install — Mount the new board on the standoffs and reconnect each harness to its matching plug per your photos.
- Test — Restore power, run a full heat cycle, and confirm proper inducer, ignition, flame proving, and blower timing with no fault codes.
Signs You Need a Replacement
- Furnace is completely unresponsive to a thermostat call.
- Sequence stalls — inducer or igniter runs but the cycle never completes.
- Blower runs continuously or cycles erratically.
- Onboard LED shows a hard fault or no light at all.
Shipping & Returns
Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.
Shipping Information
- Orders placed before 3PM CST ship same business day
- Standard delivery: 2-5 business days
- Express shipping available at checkout
- Free shipping on orders over $75
- Tracking number emailed upon shipment
Return Policy
- 30-day returns on unused parts in original packaging
- Electrical parts (capacitors, contactors, control boards) are final sale once installed
- Email info@nationalhvacparts.com to initiate a return
- Refunds processed within 5-7 business days