Tempstar PTAC Thermostat for TEA15K34STA – OEM 1058517 | Ships Today
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Overview
This is the genuine OEM PTAC thermostat (part number 1058517, "TSTAT PTAC X") for the Tempstar TEA15K34STA packaged system. The thermostat is the brain of the unit's control circuit — it reads room temperature and signals the compressor, fan, and heating stages to cycle on and off to maintain your setpoint. When a PTAC thermostat fails, you typically see the unit refusing to start, running continuously without satisfying the setpoint, short-cycling, or displaying erratic temperature swings. Replacing the thermostat with the correct OEM part restores accurate, reliable temperature control.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1058517 |
| Description | TSTAT PTAC X |
| Type | PTAC Thermostat / Control |
| Brand | Tempstar |
| Fitment | OEM Direct Replacement |
| Compatible Model | TEA15K34STA |
Compatibility
Engineered as a direct-fit OEM replacement for the Tempstar TEA15K34STA. This is the same control used across the ICP/Heil family of packaged equipment, so it also services equivalent Heil and Comfortmaker units that originally shipped with part 1058517. Always confirm your existing part number before ordering.
Installation Guide
- Safety First – Disconnect power at the breaker and verify zero voltage with a multimeter before touching any wiring.
- Access – Remove the control/service panel to expose the thermostat and its harness.
- Document – Photograph all wire connections and terminal positions before disconnecting anything.
- Remove – Release the retaining tabs or screws, unplug the wiring harness, and lift out the old thermostat.
- Install – Mount the new thermostat in the same position and reconnect every wire exactly per your photo.
- Test – Restore power, set a call for cooling and heating, and confirm the unit responds and holds setpoint.
Signs You Need a Replacement
- Unit will not turn on or respond to temperature changes
- System runs constantly and never satisfies the setpoint
- Short-cycling or erratic on/off behavior
- Inaccurate temperature readings or no display
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