Tempstar Pressure Switch for TVA948GKA101 — OEM Part 1188015 | Ships Today
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Overview
This is a genuine OEM pressure switch assembly (Part No. 1188015) for the Tempstar TVA948GKA101 heat pump. The pressure switch is a critical safety control that monitors refrigerant pressure in the system and opens or closes the control circuit to protect the compressor from operating under unsafe high- or low-pressure conditions. When refrigerant charge drops, a coil fails, or airflow is restricted, the switch interrupts the circuit and shuts the unit down to prevent costly compressor damage. A failed or stuck switch is one of the most common causes of intermittent no-cool, short-cycling, and nuisance lockouts. This assembly is built and calibrated to the exact factory trip and reset thresholds for your model, ensuring reliable, code-compliant operation.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1188015 |
| Type | Pressure Switch Assembly |
| Brand | Tempstar (ICP / Heil) |
| Description | Pressure Switch Asy |
| Fit | OEM Direct Replacement |
| Application | Heat Pump / Condensing Unit |
Compatibility
Engineered as a direct-fit replacement for the Tempstar TVA948GKA101. Because ICP builds Tempstar, Heil, and Comfortmaker units on shared platforms, this assembly also fits many equivalent ICP-family models that originally shipped with OEM part 1188015. Always confirm your unit's part number against the rating plate before ordering.
Installation Guide
- Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter before touching any wiring.
- Access — Remove the service panel to expose the control area and refrigerant lines.
- Document — Photograph the switch leads and wire routing before disconnecting anything.
- Remove — Disconnect the electrical terminals, then unthread or unbolt the failed switch from its refrigerant port, taking care not to twist the line.
- Install — Thread on the new switch with proper sealant/torque, then reconnect the leads exactly per your photo.
- Test — Restore power and confirm the unit starts, runs, and holds pressure without tripping into lockout.
Signs You Need a Replacement
- Unit short-cycles or refuses to start with a pressure-fault code.
- Intermittent no-cool or no-heat that clears after a reset.
- Switch fails a continuity test against its rated trip/reset points.
- Visible corrosion, cracked housing, or a switch stuck open/closed.
Shipping & Returns
Ships same day on orders placed 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