What are the specs for this Thermostat?

The correct replacement for Tempstar model TEB12R25STA — 24V Wall Control with Knob | Ships Today is this exact part. It is the factory-specified replacement with exact OEM specifications. Using a part with different specifications can cause equipment damage or void your warranty. You can verify this by checking the data plate on your Tempstar equipment which lists the model number TEB12R25STA — 24V Wall Control with Knob | Ships Today.

What symptoms indicate I need a new thermostat?

Common symptoms that indicate you need a new thermostat include unusual noises, intermittent operation, complete failure to operate, or visible damage. For specific diagnostic guidance, visit nationalhvacparts.com/pages/hvac-diagnostic.

Is this thermostat compatible with Bryant or Payne systems too?

Many Tempstar parts are cross-compatible with Bryant and Payne systems since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across multiple brand labels with different model numbers. To verify cross-compatibility, check your Bryant or Payne equipment service manual for cross-compatible part numbers, or contact info@nationalhvacparts.com with your model number for confirmation.

Tempstar

Tempstar PTAC Thermostat for TEB12R25STA — 24V Wall Control with Knob | Ships Today

Name: Tempstar PTAC Thermostat for TEB12R25STA — 24V Wall Control with Knob | Ships Today
Brand: Tempstar
SKU: 1058437-GEN
Price: 54.95 USD
Availability: InStock

SKU: 1058437-GEN Brand: Tempstar

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Overview

This genuine OEM PTAC thermostat assembly fits the Tempstar TEB12R25STA packaged terminal air conditioner and covers OEM parts 1058517 (TSTAT PTAC) and 1058437 (control knob). The thermostat senses room temperature and drives the compressor, fan, and heat circuits through the 24V control loop. A failing PTAC thermostat shows up as no response to setpoint changes, a unit that runs constantly or never starts, or erratic cycling. Replacing the thermostat and knob restores accurate, repeatable temperature control.

Specifications

Spec	Value
OEM Part Numbers	1058517 (TSTAT PTAC), 1058437 (Knob)
Type	PTAC Wall Thermostat
Brand	Tempstar
Control Voltage	24V
Fits Model	TEB12R25STA

Compatibility

Engineered as the factory replacement for the Tempstar / Heil / ICP TEB12R25STA PTAC chassis. Use only on the matching model family to ensure the control range and terminal configuration are correct.

Installation Guide

Safety First — Disconnect power at the breaker and verify zero voltage with a multimeter before opening the unit.
Access — Remove the front grille and service panel to expose the control box.
Document — Photograph all thermostat wiring and terminal positions before disconnecting.
Remove — Pull the control knob, release the thermostat retaining clips, and disconnect the 24V leads.
Install — Mount the new thermostat, reconnect each lead to its photographed terminal, and press on the new knob.
Test — Restore power, set a call for cooling and heating, and confirm the unit responds at the correct setpoints.

Signs You Need a Replacement

Unit ignores temperature setting changes
Compressor runs nonstop or never engages
Short-cycling or erratic on/off behavior
Cracked, loose, or missing control knob

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

Tempstar PTAC Thermostat for TEB...

$54.95

Frequently Asked Questions

Does this Thermostat fit my Tempstar TEB12R25STA — 24V Wall Control with Knob | Ships Today?

Yes. This is the factory-specified OEM thermostat for the Tempstar TEB12R25STA — 24V Wall Control with Knob | Ships Today. It is a direct drop-in replacement that fits without modification. Always verify the model number on your equipment nameplate before ordering.

How do I replace the thermostat on my Tempstar TEB12R25STA — 24V Wall Control with Knob | Ships Today?

Refer to your equipment service manual for model-specific steps. General approach: turn off power, photograph connections, remove old part, install new part, restore power and test. For gas components, hire a licensed technician. Email info@nationalhvacparts.com for guidance.

What symptoms mean I need a new thermostat?

Common symptoms: unusual noises, intermittent operation, complete failure, or visible damage. Visit our diagnostic hub for symptom-based troubleshooting.

Is this thermostat compatible with Bryant or Payne too?

Many Tempstar parts are cross-compatible with Bryant and Payne since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across brand labels with different model numbers. To verify: check your Bryant or Payne equipment service manual for cross-compatible part numbers, or email info@nationalhvacparts.com with your model number.

Should I use OEM or aftermarket for my Tempstar thermostat?

OEM recommended for reliability and warranty compatibility. OEM parts match exact factory specifications for proper fit, performance, and safety. While aftermarket alternatives cost less upfront, the risk of improper fit and reduced lifespan usually makes OEM the better value long-term.

How fast does National HVAC Parts ship?

Orders placed before 3:00 PM CST ship the same business day. Standard delivery is 2–5 business days anywhere in the continental United States. Express shipping available at checkout. We ship from Houston, TX to all 50 states. 30-day return policy on all parts.

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