What are the specs for this Thermostat?

The correct replacement for Tempstar model THB09R34STA — Manual Control w/ 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 THB09R34STA — Manual Control w/ 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 THB09R34STA — Manual Control w/ Knob | Ships Today

Name: Tempstar PTAC Thermostat for THB09R34STA — Manual Control w/ Knob | Ships Today
Brand: Tempstar
SKU: 1058437-GEN
Price: 54.00 USD
Availability: InStock

SKU: 1058437-GEN Brand: Tempstar

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Overview

This OEM PTAC thermostat assembly is the direct-fit temperature control for the Tempstar THB09R34STA packaged terminal air conditioner / heat pump. It includes the manual control knob (OEM 1058437) and the thermostat body (OEM 1058517) that together regulate compressor and heater operation based on room temperature. When a PTAC thermostat fails, the unit may run constantly, fail to reach setpoint, short-cycle, or stop responding to the temperature dial entirely. Replacing the thermostat with the correct OEM part restores accurate setpoint control and protects the compressor from short-cycling.

Specifications

Spec	Value
Part Number	1058517 (TSTAT), 1058437 (Knob)
Type	PTAC Manual Thermostat
Brand	Tempstar (ICP / Heil)
Control Voltage	24V
Application	PTAC Air Conditioner / Heat Pump

Compatibility

Engineered for the Tempstar THB09R34STA PTAC chassis and shared ICP / Heil PTAC platforms using the same control package. Always match your existing thermostat and knob part numbers before ordering.

Installation Guide

Safety First — Disconnect power at the PTAC plug/breaker and verify zero voltage with a multimeter.
Access — Remove the front grille and control panel cover.
Document — Photograph all thermostat wiring before disconnecting.
Remove — Pull the control knob, then unfasten the thermostat body and disconnect its leads.
Install — Mount the new thermostat, reconnect leads per your photo, and press on the new knob.
Test — Restore power and confirm the unit responds correctly to setpoint changes.

Signs You Need a Replacement

Unit runs continuously and never satisfies the setpoint
No response when turning the control knob
Short-cycling or erratic on/off behavior
Cracked, loose, or stripped 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 THB...

$54.00

Frequently Asked Questions

Does this Thermostat fit my Tempstar THB09R34STA — Manual Control w/ Knob | Ships Today?

Yes. This is the factory-specified OEM thermostat for the Tempstar THB09R34STA — Manual Control w/ 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 THB09R34STA — Manual Control w/ 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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