What are the specs for this Thermostat?

The correct replacement for Tempstar model TEB12K50SPA — OEM Replacement | 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 TEB12K50SPA — OEM Replacement | 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 with Knob for TEB12K50SPA — OEM Replacement | Ships Today

Name: Tempstar PTAC Thermostat with Knob for TEB12K50SPA — OEM Replacement | Ships Today
Brand: Tempstar
SKU: 1058437-GEN
Price: 44.95 USD
Availability: InStock

SKU: 1058437-GEN Brand: Tempstar

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Overview

This is the OEM PTAC thermostat assembly for the Tempstar TEB12K50SPA, supplied with its matching control knob (OEM 1058437) and thermostat body (OEM 1058517). The PTAC thermostat senses room temperature and switches the unit between heating, cooling, and off. A failing thermostat is one of the most common causes of a PTAC that runs without stopping, ignores setpoint changes, or fails to start. Using the correct OEM-calibrated part avoids the temperature offset and cycling problems that come with universal substitutes.

Specifications

Spec	Value
Thermostat Part Number	1058517
Knob Part Number	1058437
Type	PTAC Thermostat
Brand	Tempstar (ICP / Heil)
Fitment	OEM exact replacement
Control	Mechanical knob adjustment

Compatibility

Built for the Tempstar TEB12K50SPA PTAC unit. Related ICP-family PTACs (Heil, Comfortmaker) often use the same control set, but confirm part numbers 1058517 and 1058437 against your unit before ordering.

Installation Guide

Safety First — Disconnect power at the unit and breaker; verify zero voltage with a multimeter.
Access — Remove the front grille and control-access panel.
Document — Photograph all wiring and the sensing-element routing before disconnecting.
Remove — Pull the old knob, release the thermostat from the bracket, and disconnect leads and sensor.
Install — Mount the new thermostat, route the sensor as photographed, reconnect leads, and fit the new knob.
Test — Restore power and verify response to setpoint changes in heat and cool modes.

Signs You Need a Replacement

System never satisfies the setpoint or runs continuously.
Turning the knob produces no change.
Erratic cycling or unit won't start.
Damaged or slipping 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 with Kn...

$44.95

Frequently Asked Questions

Does this Thermostat fit my Tempstar TEB12K50SPA — OEM Replacement | Ships Today?

Yes. This is the factory-specified OEM thermostat for the Tempstar TEB12K50SPA — OEM Replacement | 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 TEB12K50SPA — OEM Replacement | 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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