Tempstar PTAC Thermostat for TEA09R50STB — Digital Zone Control | Ships Today
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Overview
This is the genuine OEM PTAC thermostat (part number 1058517, "TSTAT PTAC X") for the Tempstar TEA09R50STB packaged terminal air conditioner. The thermostat is the control brain of the PTAC unit — it reads room temperature, manages the cooling and heating call, and cycles the compressor and fan to maintain setpoint. When this control fails, the unit may not respond to temperature settings, may short-cycle, run continuously, or stop heating and cooling entirely. Replacing a failed thermostat with the exact OEM part restores correct operation and protects the compressor from damaging short-cycle behavior. This is a direct factory-fit replacement requiring no adapters or rewiring.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1058517 |
| Description | TSTAT PTAC X |
| Type | PTAC Digital Thermostat / Control |
| Brand | Tempstar (ICP / Heil family) |
| Fits Model | TEA09R50STB |
| Fitment | OEM direct replacement |
Compatibility
Engineered specifically for the Tempstar TEA09R50STB PTAC unit and shares the 1058517 control across the TEA09 R-series family (built by ICP/Heil). Always confirm your existing part number before ordering. This listing is the factory-matched control for your model.
Installation Guide
- Safety First — Disconnect power at the unit and breaker, then verify zero voltage with a multimeter.
- Access — Remove the PTAC front grille and service panel.
- Document — Photograph all wire connections and harness positions before disconnecting.
- Remove — Unplug the thermostat harness, release the mounting clips/screws, and lift out the old control.
- Install — Seat the new 1058517 control, reconnect the harness exactly per your photo, and secure the mounts.
- Test — Restore power, set a cooling and a heating call, and confirm the unit responds and holds setpoint.
Signs You Need a Replacement
- Unit does not respond to temperature setting changes.
- PTAC short-cycles or runs continuously regardless of room temperature.
- No heating or no cooling call despite power to the unit.
- Blank, frozen, or erratic display/control behavior.
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