Tempstar Pressure Switch for TCA936GKA100 — High Pressure Limit | Ships Today

Overview

This is a genuine OEM high pressure switch (part number 1184656) for the Tempstar TCA936GKA100 condensing unit. The high pressure switch is a safety control wired into the low-voltage control circuit that monitors refrigerant discharge pressure. If system pressure climbs above the factory trip point — typically caused by a dirty condenser coil, a failing condenser fan motor, an overcharged system, or restricted airflow — the switch opens and de-energizes the compressor to prevent catastrophic damage. When this switch fails or trips, the compressor will not run, the unit short-cycles on the high-pressure fault, or cooling stops entirely on hot days when head pressure is highest.

Specifications

Compatibility

Designed as a direct OEM replacement for the Tempstar TCA936GKA100 air conditioning condensing unit. This switch is also used across related ICP/Heil/Comfortmaker family condensers that share the same control platform. Always confirm the printed part number 1184656 against the failed switch before installing.

Installation Guide

1. Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter before touching any wiring.
2. Access — Remove the condenser service/control panel to expose the switch and refrigerant line tap.
3. Document — Photograph the two wire leads and routing before disconnecting.
4. Remove — Unplug the spade terminals, then unthread the switch from the Schrader-style fitting (the fitting is self-sealing on most models — minimal refrigerant loss).
5. Install — Thread on the new switch hand-tight plus a quarter turn, reconnect both leads per your photo.
6. Test — Restore power and verify the compressor energizes and runs without tripping on high pressure.

Signs You Need a Replacement

• Compressor will not start while the fan still runs
• Unit repeatedly short-cycles or locks out on a high-pressure fault
• No cooling on the hottest part of the day when head pressure peaks
• Continuity reads open across the switch at normal idle pressure

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.