Tempstar Low Pressure Switch for TCH960GKA200 — OEM Draft Safety | Ships Today

Overview

This OEM low pressure switch (part number 1184655) is a critical safety control on the Tempstar TCH960GKA200 furnace. It monitors negative pressure in the venting and combustion-air path and proves that the inducer motor is moving exhaust gases correctly before the control board allows the igniter and gas valve to fire. If the switch does not close — or opens during a heating cycle — the board locks out the burners to prevent unsafe operation. A failed or drifted pressure switch is a leading cause of furnaces that ignite and immediately shut down or fail to light at all.

Specifications

Compatibility

Designed for the Tempstar TCH960GKA200 gas furnace and compatible ICP-family models manufactured for Tempstar, Heil, Comfortmaker, and Carrier. Pressure switch set points are model-specific — match the part number and trip rating stamped on your original switch before installing.

Installation Guide

1. Safety First — Disconnect power at the furnace switch and breaker, and verify zero voltage with a multimeter.
2. Access — Remove the furnace burner/control compartment door.
3. Document — Photograph the hose routing and electrical terminals before disconnecting.
4. Remove — Pull the silicone sensing hose off the port, slide off the spade connectors, and unscrew the switch from its bracket.
5. Install — Mount the new switch, reconnect the hose firmly with no kinks, and reattach the wiring per your photo.
6. Test — Restore power, start a heat cycle, and confirm the burners light and stay lit through a full call.

Signs You Need a Replacement

• Furnace inducer runs but burners never ignite
• Control board reports a pressure switch or lockout fault code
• Unit short-cycles — lights briefly then shuts off on safety
• No measurable continuity change when the inducer pulls draft

Shipping & Returns

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