ICP Hot Surface Igniter Kit for RGS121SRAB0AAAA — With Wiring Harness | Ships Today
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Overview
This OEM hot surface igniter kit for the ICP / Tempstar / Heil RGS121SRAB0AAAA gas furnace includes the igniter (part 1171306) and the matched igniter wiring kit (part 1188370). The hot surface igniter glows when 120V is applied at the start of each heat cycle, igniting the burners as the gas valve opens. Because the element is brittle silicon carbide or nitride, it is the single most common cause of intermittent no-heat calls — it cracks from thermal cycling, contamination from oily fingerprints, or simple age. The included wiring kit ensures clean, factory-correct connections so the new igniter receives full voltage. Replacing both together restores reliable ignition and eliminates the repeated lockouts that come from a weak or cracked element.
Specifications
| Spec | Value |
|---|---|
| Igniter Part Number | 1171306 |
| Wiring Kit Part Number | 1188370 |
| Type | Hot Surface Igniter |
| Brand | ICP (Tempstar / Heil / Comfortmaker) |
| Operating Voltage | 120 VAC |
| Includes | Igniter + Wiring Harness Kit |
| Fitment | OEM |
Compatibility
Direct factory replacement for the ICP RGS121SRAB0AAAA and compatible Tempstar, Heil, and Comfortmaker gas furnaces that use this hot surface igniter and harness. Verify your furnace model and existing igniter style before ordering.
Installation Guide
- Safety First — Shut off gas and disconnect furnace power, then verify zero voltage at the igniter leads with a multimeter.
- Access — Remove the furnace burner-compartment service panel.
- Document — Photograph the igniter mounting and harness routing before disconnecting.
- Remove — Unplug the igniter harness, remove the mounting screw, and lift out the old igniter without touching the new element with bare hands.
- Install — Mount the new igniter, route and connect the included wiring kit, and confirm the element sits correctly over the burner.
- Test — Restore gas and power, start a heat cycle, and verify the igniter glows and the burners light.
Signs You Need a Replacement
- Furnace blower runs but the burners never ignite (no heat).
- Visible crack or break in the igniter element.
- Igniter glows weakly or not at all on a call for heat.
- Repeated ignition lockouts or short-cycling on heat.
Shipping & Returns
Ships same day on orders placed 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