Tempstar PTAC Thermostat for THB07R25SPA – 24V Manual Control with Knob | Ships Today
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Overview
This OEM PTAC thermostat assembly is the factory replacement control for the Tempstar THB07R25SPA packaged terminal air conditioner. It pairs the 24V PTAC thermostat body (OEM 1058517) with the matching control knob (OEM 1058437) so you can fully restore temperature control in one part. The thermostat reads room temperature and cycles the PTAC's cooling and heating to hold the occupant setpoint. Failure shows up as erratic cycling, a unit that runs nonstop, no reaction to the knob, or a complete loss of cooling and heat calls. In high-traffic lodging and multifamily settings, the knob and contacts wear from constant guest use.
Specifications
| Spec | Value |
|---|---|
| OEM Part Numbers | 1058437 (Knob), 1058517 (Thermostat) |
| Type | PTAC Manual Thermostat |
| Brand | Tempstar / Heil / ICP |
| Control Voltage | 24V |
| Application | Packaged Terminal Air Conditioner |
| Fit | OEM Direct Replacement |
Compatibility
Direct-fit replacement for the Tempstar THB07R25SPA PTAC and other ICP/Heil PTAC units built on the same control platform. Verify your current part number matches 1058517 and 1058437 before ordering.
Installation Guide
- Safety First – Disconnect power to the PTAC and verify zero voltage with a multimeter.
- Access – Remove the front grille and control panel cover.
- Document – Photograph all wire positions before disconnecting.
- Remove – Pull the old knob, disconnect the thermostat leads, and unclip the failed body.
- Install – Mount the new thermostat, reconnect per your photo, and press on the new knob.
- Test – Restore power and confirm response to setpoint changes in cooling and heating.
Signs You Need a Replacement
- No response to knob adjustments
- Cracked, loose, or missing knob
- Constant running or short-cycling
- No cooling or heat call from the unit
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