Tempstar PTAC Thermostat for THB07R34SPA — OEM Knob & Control | Ships Today
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Overview
This genuine OEM thermostat package fits the Tempstar THB07R34SPA packaged terminal air conditioner (PTAC). It includes the thermostat assembly (OEM part 1058517) and the matching control knob (OEM part 1058437). The thermostat reads room temperature and cycles the compressor and fan to hold the occupant's selected setpoint. In hospitality, multifamily, and light commercial PTAC installs, a degraded thermostat is a leading cause of comfort complaints and unnecessary service calls. Telltale signs of failure include the unit not responding to the dial, short cycling, a knob that spins freely, and temperatures that wander away from the setpoint. Installing the OEM thermostat restores precise, reliable temperature control at a fraction of the cost of replacing the chassis.
Specifications
| Spec | Value |
|---|---|
| Part Numbers | 1058517 (thermostat), 1058437 (knob) |
| Type | PTAC mechanical thermostat |
| Brand | Tempstar |
| Control Voltage | 24V |
| Fit | OEM direct replacement |
| Application | Packaged terminal air conditioner |
Compatibility
A direct-fit replacement for the Tempstar THB07R34SPA PTAC chassis. ICP, Heil, Comfortmaker, and Tempstar PTAC units built on the shared THB-series platform use the same control hardware, so this thermostat and knob set also services those equivalent models. Verify your part number against the original before ordering.
Installation Guide
- Safety First — Disconnect power at the cord or breaker and confirm zero voltage with a multimeter before handling wiring.
- Access — Remove the front grille and control-panel cover to reach the thermostat body.
- Document — Photograph every wire and terminal position before disconnecting.
- Remove — Pull the old knob, release the thermostat mounting clip or screws, and detach the spade terminals.
- Install — Mount the new thermostat (1058517), reconnect each wire to match your photo, and press on the new knob (1058437).
- Test — Restore power and confirm the unit cycles on and off correctly across the dial range.
Signs You Need a Replacement
- Unit fails to start or stop at the selected dial position
- Knob is loose, cracked, or gritty to turn
- Room temperature consistently overshoots or undershoots the setpoint
- Compressor short cycles or never shuts off
Shipping & Returns
Ships same day on orders placed before 3 PM CST. 30-day returns on unused parts. 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