Heil Quaker ICP 1191249 Pressure Switch

The Heil Quaker ICP 1191249 Pressure Switch is an essential safety component specifically engineered for International Comfort Products (ICP) and Heil-branded forced-air furnaces. Operating as a -0.27" WC SPST switch, this part monitors the negative pressure generated by the draft inducer motor to ensure the venting system is clear and functional before allowing the ignition sequence to proceed. As the verified 1191249 direct replacement for 1183920, this OEM component maintains the original calibration standards required for equipment safety and efficiency.

Designed for professional installation, this single-pole single-throw (SPST) pressure switch features a 1/4-inch barb connection for standard pneumatic tubing. For veteran contractors, the 1191249 provides a drop-in solution for ICP furnace repair, eliminating the need for complex field adjustments often required with universal alternatives. It is compatible with a wide range of models under the Tempstar, Arcoaire, and Comfortmaker families, making it a versatile addition to your service truck stock when troubleshooting vent pressure switch failure or fluctuating pressure codes.

Key Benefits for Technicians:

• Verified OEM Specs: Factory-calibrated at -0.27" WC to ensure precise safety cut-offs.
• Direct Cross-Reference: Replaces discontinued part number 1183920 without modification.
• Universal ICP Compatibility: Fits various Heil, Quaker, and Tempstar 80% and 90% AFUE units.
• Durable Construction: Built with industrial-grade diaphragms to withstand heat and moisture cycles.
• Rapid Diagnostic Integration: Clearly marked terminals for fast continuity testing during service calls.

Common Questions & Troubleshooting:

• What causes a -0.27" WC switch to trip frequently? Often, a blocked flue, cracked inducer housing, or restricted condensate drain (on 90% units) will prevent the inducer from reaching the setpoint.
• Can I use a switch with a different WC rating? No. Using a switch with an incorrect rating can lead to hazardous operating conditions or premature system lockouts.
• How do I test this switch? Use a manometer to verify the inducer is pulling at least -0.27" water column and a multimeter to check for 0 ohms of resistance across the terminals when the vacuum is applied.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.