Tempstar PTAC Thermostat for TEB15K25DCA – Low Temp OEM 1058517 | Ships Today
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Overview
This is a genuine OEM PTAC (Packaged Terminal Air Conditioner) thermostat assembly for the Tempstar TEB15K25DCA. The kit covers the low-temperature PTAC thermostat (OEM 1058517 / low-temp variant 1059022) and its matching control knob (OEM 1058437). The thermostat senses indoor air temperature and cycles the compressor, fan, and electric heat to maintain the setpoint. When a PTAC thermostat fails you will see the unit short-cycling, refusing to switch between heat and cool, running continuously, or not responding to the dial at all. Because this is a low-temp-rated control, it is engineered to operate reliably in cold ambient conditions where a standard tstat would lock out.
Specifications
| Spec | Value |
|---|---|
| OEM Part Numbers | 1058517, 1059022, 1058437 |
| Type | PTAC Thermostat (Low Temp) |
| Brand | Tempstar / Heil / ICP |
| Control Voltage | 24V |
| Includes | Thermostat + Control Knob |
| Fitment | OEM Direct Replacement |
Compatibility
Engineered as a direct-fit replacement for the Tempstar TEB15K25DCA PTAC chassis and other Heil/ICP PTAC models sharing the same control platform. Always confirm the OEM part number on your existing thermostat before ordering.
Installation Guide
- Safety First – Disconnect power at the PTAC chassis and verify zero voltage with a multimeter.
- Access – Remove the front cover and control panel to expose the thermostat assembly.
- Document – Photograph all wire terminals and routing before disconnecting anything.
- Remove – Pull the control knob, then unfasten the old thermostat and disconnect its sensing bulb and low-voltage leads.
- Install – Mount the new thermostat, route the sensing element to its original clip, reconnect the leads per your photo, and press on the new knob.
- Test – Restore power and verify the unit responds to the dial across heat, cool, and fan settings.
Signs You Need a Replacement
- Unit short-cycles or runs continuously regardless of setpoint
- No response when turning the temperature dial
- Cracked, slipping, or missing control knob
- Will not switch between heating and cooling modes
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