Tempstar PTAC Thermostat Kit for TEB09R25STA — OEM Knob + Control | Ships Today

Overview

This OEM PTAC thermostat kit replaces the temperature control and selector knob on your Tempstar TEB09R25STA packaged terminal air conditioner. It includes the thermostat control (part 1058517) and the matching selector knob (part 1058437). The thermostat senses room temperature and cycles the compressor and heat circuit to hold your setpoint; the knob is the user interface that sets that target. When the thermostat drifts or fails, the unit short-cycles, never reaches setpoint, or runs continuously — and a cracked or stripped knob makes the unit impossible to adjust.

Specifications

Compatibility

Direct OEM fit for the Tempstar (ICP / Heil) TEB09R25STA PTAC model. The 1058437 knob and 1058517 thermostat are shared across several TEB09R25 PTAC variants — verify your existing control's terminal layout before installing.

Installation Guide

1. Safety First — Disconnect power and verify zero voltage at the control with a multimeter.
2. Access — Pull the front grille and remove the control-panel service panel.
3. Document — Photograph every wire on the old thermostat before disconnecting.
4. Remove — Pull the knob, then transfer the spade leads off the failed thermostat one at a time.
5. Install — Mount the new thermostat, reconnect each wire per your photo, and press on the new knob.
6. Test — Restore power and confirm the unit cycles on and off at the dialed setpoint.

Signs You Need a Replacement

• Unit short-cycles or runs nonstop regardless of room temperature
• Setpoint never reached or wildly inaccurate
• Stripped, cracked, or missing control knob
• No response when the temperature dial is turned

Shipping & Returns

Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.