Tempstar PTAC Thermostat & Knob Kit for TEB15R50SPA — OEM 1058517 | Ships Today
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Overview
This is the genuine OEM PTAC thermostat assembly for the Tempstar TEB15R50SPA packaged terminal air conditioner, covering thermostat part 1058517 and its matching control knob 1058437. The thermostat is the control center of the unit — it senses room temperature and cycles the compressor, blower, and heat on and off through the 24V control circuit. A worn thermostat or a cracked knob leaves the occupant unable to dial in a setpoint, and commonly presents as a unit that runs nonstop, won't start, or short-cycles. Both items are exact factory replacements that fit the existing control pocket and harness with no rewiring or recalibration.
Specifications
| Spec | Value |
|---|---|
| Thermostat Part Number | 1058517 |
| Knob Part Number | 1058437 |
| Type | PTAC Thermostat |
| Brand | Tempstar / Heil |
| Control Voltage | 24V |
| Fits Model | TEB15R50SPA |
| Fitment | OEM Direct Replacement |
Compatibility
Engineered specifically for the Tempstar/Heil TEB15R50SPA PTAC. Parts 1058517 and 1058437 are the exact thermostat and knob the unit shipped with from the factory, so they install without adapters, controller changes, or recalibration.
Installation Guide
- Safety First — Disconnect power at the cord or breaker and verify zero voltage with a multimeter before touching wiring.
- Access — Remove the PTAC front grille and control-housing service panel to expose the thermostat.
- Document — Photograph all thermostat wire terminations and the knob position before disconnecting anything.
- Remove — Pull the old knob, release the thermostat clip, slide it out, and disconnect the low-voltage leads.
- Install — Seat the new 1058517 thermostat, reconnect leads exactly as photographed, then press the new 1058437 knob onto the shaft.
- Test — Restore power, run a cooling and a heating call, and confirm the unit responds to the dial.
Signs You Need a Replacement
- Cracked, stripped, or missing control knob
- Unit ignores the temperature dial or won't start
- PTAC runs continuously and never reaches setpoint
- Short-cycling or erratic temperature control
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