Tempstar PTAC Thermostat for TEB12K00STA — OEM Knob & Control Kit | Ships Today
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Overview
This is the genuine OEM PTAC (Packaged Terminal Air Conditioner) thermostat kit for the Tempstar TEB12K00STA unit. It includes the thermostat control (OEM part 1058517) and the matching control knob (OEM part 1058437). The thermostat is the brain of your PTAC system, sensing room temperature and cycling the compressor, fan, and heating elements to maintain the setpoint. When a PTAC thermostat fails, you may experience temperatures that never reach the dial setting, short cycling, a unit that won't turn on or off, or a knob that spins freely without changing the setpoint. Replacing the thermostat with a factory-matched OEM part restores accurate temperature control and reliable cycling.
Specifications
| Spec | Value |
|---|---|
| OEM Part Numbers | 1058517 (TSTAT PTAC), 1058437 (KNOB TSTAT PTAC) |
| Type | PTAC Mechanical Thermostat |
| Brand | Tempstar (ICP / Heil) |
| Control Voltage | 24V |
| Application | PTAC Air Handler / Heat Pump |
| Fitment | OEM Direct Replacement |
Compatibility
Engineered as a direct-fit replacement for the Tempstar TEB12K00STA PTAC unit. This thermostat and knob assembly is shared across many ICP-family TEB-series PTAC models built by ICP/Heil. Confirm your unit's model and OEM part number before ordering.
Installation Guide
- Safety First — Disconnect power at the unit and breaker, verify zero voltage with a multimeter.
- Access — Remove the front cover and control-panel service panel.
- Document — Photograph all wire terminations and routing before disconnecting.
- Remove — Pull the old control knob, then unscrew and disconnect the failed thermostat, noting each wire position.
- Install — Mount the new thermostat, reconnect wires per your photo, and press on the new control knob.
- Test — Restore power and verify the unit cycles heating and cooling at the dial setpoint.
Signs You Need a Replacement
- Room never reaches the temperature set on the dial
- Unit short cycles or won't shut off
- Knob spins freely without engaging the control
- No response when adjusting the thermostat
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