ICP Hot Surface Igniter Kit for X8MPT075F14A1 — HSI + Flame Sensor + Gas Valve | Ships Today

Overview

This OEM ignition service set for the ICP X8MPT075F14A1 gas furnace centers on the 120V hot surface igniter (part #1172533) and includes the matched flame sensor (#1172543) and 2-stage Honeywell VR8205Q hot-water/HSI gas valve (#1172542). The hot surface igniter glows red-hot on each heat call to light the burners; it is the most frequently replaced furnace part because the silicon nitride/carbide element grows brittle and eventually cracks from thousands of thermal cycles. The flame sensor confirms a flame is present and tells the control board to keep the gas valve open — a dirty or failed sensor causes the furnace to light and then shut down within seconds (short cycling on flame loss). Replacing the igniter, sensor, and valve together restores a complete, reliable ignition sequence.

Specifications

Compatibility

Factory-matched to the ICP / Tempstar / Heil X8MPT075F14A1 2-stage gas furnace. The igniter and flame sensor cross to many ICP-family HSI furnaces using a 120V hot surface element; verify your furnace uses the VR8205Q-style 2-stage valve before replacing the valve component.

Installation Guide

1. Safety First — Shut off gas and disconnect electrical power, then verify zero voltage with a multimeter.
2. Access — Remove the burner-compartment service panel.
3. Document — Photograph the igniter bracket, flame-sensor position, and all gas-valve wiring before disconnecting.
4. Remove — Unplug the igniter and sensor leads and unscrew their brackets; if replacing the valve, close the manual shutoff and disconnect the gas line and wiring. Never touch the igniter element with bare fingers.
5. Install — Mount the new igniter and sensor in the exact factory position, reseat the gas valve, and reconnect wiring per your photos.
6. Test — Restore gas and power, run a heat call, and confirm clean ignition and steady flame proving.

Signs You Need a Replacement

• Furnace clicks and tries to light but burners never ignite (cracked igniter).
• Furnace lights then shuts off after a few seconds (failed flame sensor).
• Visible cracks or hot spots on the igniter element.
• Repeated lockout codes for ignition or flame failure.

Shipping & Returns

Ships same day on orders placed before 3 PM CST. 30-day hassle-free returns. Backed by the National HVAC Parts fitment guarantee.