Tempstar Pressure Switch for TCA736GKA200 — High-Pressure Limit Safety Switch | Ships Today
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
Overview
This OEM high-pressure switch (part number 1184656) is a refrigerant-side safety control for the Tempstar TCA736GKA200 air conditioning condensing unit. The switch watches discharge-line pressure and opens the 24V control circuit when pressure exceeds its factory trip point, cutting power to the compressor before it can be damaged. High head pressure usually comes from a dirty condenser coil, a weak condenser fan motor, refrigerant overcharge, or a restricted liquid line. A switch that trips repeatedly points to a real system problem; one that fails closed offers no protection, and one that fails open will lock the unit out and stop cooling.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1184656 |
| Type | High-Pressure Limit Switch |
| Brand | Tempstar (ICP / Heil) |
| Function | Refrigerant high-side safety cutout |
| Control Voltage | 24V |
| Fits Model | TCA736GKA200 |
Compatibility
Direct-fit replacement for the Tempstar TCA736GKA200 condensing unit. The 1184656 high-pressure switch is shared across many ICP-family split-system condensers and heat pumps under the Tempstar, Heil, Comfortmaker, and ICP brands. Confirm your existing switch part number before ordering.
Installation Guide
- Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter.
- Access — Remove the condenser service/control panel.
- Document — Photograph all wiring before disconnecting.
- Remove — Unplug the two control leads and unthread the switch from its self-sealing Schrader-style refrigerant port (no recovery required on most units).
- Install — Thread in the new switch hand-tight plus a quarter turn, then reconnect the leads per your photo.
- Test — Restore power, start the unit, and confirm normal operation with no nuisance lockout.
Signs You Need a Replacement
- Compressor short-cycles or locks out on high-pressure faults with a clean coil and correct charge.
- Unit runs but never trips on a genuine high-pressure event (switch failed closed).
- No cooling and the switch reads open at normal pressure (switch failed open).
- Visible corrosion, cracked housing, or damaged terminals.
Shipping & Returns
Ships same day 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