Tempstar Pressure Switch Kit for TSH548HKA200 — Hi & Lo OEM 1184656/1184655 | Ships Today
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
Overview
This OEM pressure switch kit includes the high-pressure switch (part #1184656) and low-pressure switch (part #1184655) for the Tempstar TSH548HKA200 heat pump system. Refrigerant pressure switches are critical safety controls that monitor system pressure and shut down the compressor if pressure rises too high or falls too low, protecting the compressor from costly damage. The high-pressure switch guards against blocked condenser airflow, overcharge, and dirty coils; the low-pressure switch protects against loss of charge, restricted refrigerant flow, and freeze-up. When a pressure switch fails, the unit may short-cycle, refuse to start, trip on a safety lockout, or run without cooling. Genuine OEM switches ensure the trip and reset setpoints exactly match the factory specification for this model.
Specifications
| Spec | Value |
|---|---|
| High-Pressure Switch Part # | 1184656 |
| Low-Pressure Switch Part # | 1184655 |
| Type | Refrigerant Hi/Lo Pressure Switch Set |
| Brand | Tempstar (ICP / Heil) |
| Function | Compressor safety / lockout control |
| Fitment | OEM direct replacement |
Compatibility
Designed as a direct-fit OEM replacement for the Tempstar TSH548HKA200 heat pump. These ICP/Heil-family pressure switches are also shared across many comparable Tempstar, Heil, Comfortmaker, and ICP condensing units of the same platform. Always confirm the printed part number on your existing switch before ordering.
Installation Guide
- Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage at the contactor with a multimeter.
- Access — Remove the condenser service panel to expose the refrigerant lines and switch terminals.
- Document — Photograph all wire connections to each pressure switch before disconnecting.
- Remove — Pressure switches mount on Schrader-style ports; disconnect the spade terminals and unthread the switch from its fitting (a small amount of refrigerant release is normal on non-self-sealing ports — recover if required by local code).
- Install — Thread the new switch onto the correct high or low port, snug firmly, and reconnect the spade terminals per your photo.
- Test — Restore power, start the system, and confirm normal operating pressures with no nuisance safety trips.
Signs You Need a Replacement
- Compressor will not start or locks out on a safety fault
- Unit short-cycles or trips intermittently with normal charge
- Switch fails a continuity test at known-good pressure
- 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