Tempstar Hi Pressure Switch for TCA924GKA100 — OEM Safety Control | Ships Today
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Overview
This OEM high pressure switch (part number 1184656) is the high-side safety control that protects the compressor on your Tempstar TCA924GKA100 from dangerous discharge pressure. Wired in series with the 24V control circuit, it opens and shuts the system down if head pressure climbs too high — guarding against a dirty condenser coil, blocked airflow, overcharge, or a failing fan. When the switch fails or trips, the unit short-cycles, locks out, or refuses to start until the high-pressure fault clears. Replacing it with the correct OEM cutout restores the factory safety trip and reset points.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1184656 |
| Type | High Pressure Safety Switch |
| Brand | Tempstar (ICP / Heil family) |
| Circuit | 24V control, normally closed |
| Function | High-side refrigerant cutout |
| Fitment | OEM Replacement |
Compatibility
Designed for the Tempstar TCA924GKA100 and ICP / Heil / Comfortmaker condensing units and heat pumps that use this high-side pressure cutout. Confirm the trip/reset pressure rating and fitting type against your existing switch before installing.
Installation Guide
- Safety First — Disconnect power and verify zero voltage with a multimeter. The switch mounts on a pressurized refrigerant line.
- Access — Remove the service panel to reach the high-side line and the switch.
- Document — Photograph the wiring and the switch location before disconnecting.
- Remove — Disconnect the two control leads. If the switch threads into the line, recover or isolate refrigerant per EPA rules before removing.
- Install — Thread or clip on the new switch, seal the fitting, and reconnect the control leads per your photo.
- Test — Restore power, run the system, and confirm normal head pressure with no nuisance trips.
Signs You Need a Replacement
- Unit locks out or short-cycles on a high-pressure fault
- Compressor won't start with no obvious pressure problem
- Switch trips even after the coil is cleaned and charge verified
- Open circuit reading across the switch at normal pressure
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