Tempstar PTAC Thermostat for TEB07R25DCA — Low-Temp Control with Knob | Ships Today

Overview

This is the OEM thermostat control assembly for the Tempstar TEB07R25DCA packaged terminal air conditioner (PTAC). The group includes the PTAC thermostat body (P/N 1058517), the low-temperature thermostat (P/N 1059022), and the replacement control knob (P/N 1058437). Together these manage the unit's 24V control circuit — sensing room temperature and switching the compressor and fan to maintain setpoint, with the low-temp stat providing freeze/low-ambient protection so the coil and compressor are safeguarded in cold conditions. When a PTAC thermostat fails, the unit either won't respond to setpoint changes, short-cycles, runs continuously, or never calls for cooling/heating at all. A cracked or stripped knob is the most common nuisance failure, leaving the stat physically present but impossible to adjust.

Specifications

Compatibility

Built for the Tempstar TEB07R25DCA and shared across the ICP/Tempstar/Heil PTAC family that uses this knob-style mechanical thermostat with low-temperature protection. Verify your existing knob and stat profile match before ordering.

Installation Guide

1. Safety First — Disconnect power and verify zero voltage with a multimeter on the 24V control terminals.
2. Access — Remove the front control panel to expose the thermostat assembly.
3. Document — Photograph every wire on the thermostat terminals before disconnecting.
4. Remove — Pull the knob, release the mounting, and disconnect the thermostat and low-temp stat leads.
5. Install — Mount the new thermostat and low-temp control, reconnect per your photo, and press on the new knob.
6. Test — Restore power and confirm the unit cycles on and off correctly across the knob range.

Signs You Need a Replacement

• Unit ignores setpoint changes or won't turn on/off at the knob.
• Cracked, loose, or stripped control knob that won't adjust the stat.
• Short-cycling or continuous running regardless of room temperature.
• No low-temp protection — coil frosting or compressor running in cold ambient.

Shipping & Returns

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