What amp contactor do I need for my Tempstar system?

The correct replacement for Tempstar model TSA636GKA100 — 30A 24V w/ Shunt | 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 TSA636GKA100 — 30A 24V w/ Shunt | Ships Today.

My AC clicks but the compressor does not turn on. What is wrong?

Clicking from the outdoor unit without the compressor starting usually means a worn contactor. The contactor is the relay that sends power to the compressor. When its contacts are pitted or worn, it clicks but cannot establish a solid electrical connection. Other symptoms: visible pitting or burn marks on the contactor face, AC works intermittently, or buzzing from the contactor.

Is this contactor 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 Single-Pole Contactor for TSA636GKA100 — 30A 24V w/ Shunt | Ships Today

Name: Tempstar Single-Pole Contactor for TSA636GKA100 — 30A 24V w/ Shunt | Ships Today
Brand: Tempstar
SKU: 1172472-GEN
Price: 28.95 USD
Availability: InStock

SKU: 1172472-GEN Brand: Tempstar

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Overview

This is the OEM single-pole definite purpose contactor (part number 1172472) for the Tempstar TSA636GKA100 condensing unit. Rated at 30 amps with a 24V coil and an integrated shunt, this contactor is the electrical switch that energizes the compressor and outdoor fan whenever the thermostat calls for cooling. The 24V control signal pulls in the contacts, sending line voltage to the unit. Over time the contact points pit, burn, and weld from arcing, while the coil can fail open. Symptoms include a unit that won't start, a chattering or buzzing contactor, or a system that keeps running after the call for cooling ends because the contacts have welded shut. Replacing it with the correct OEM-rated contactor restores reliable, safe switching.

Specifications

Spec	Value
Part Number	1172472
Type	Single-Pole (1P) Definite Purpose Contactor
Brand	Tempstar (ICP / Heil)
Rating	30 Amps
Coil Voltage	24V
Features	Includes shunt

Compatibility

Direct OEM replacement for the Tempstar TSA636GKA100 condensing unit. Also fits equivalent ICP, Heil, and Comfortmaker units originally equipped with contactor 1172472. Confirm pole count, amp rating, and 24V coil against your existing contactor before ordering.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and verify zero voltage with a multimeter.
Access — Remove the service/electrical panel of the condensing unit.
Document — Photograph every wire on the line, load, and coil terminals before disconnecting.
Remove — Unscrew the old contactor from its bracket and transfer wires one at a time to avoid mix-ups.
Install — Mount the new contactor, land each wire on the matching terminal per your photo, and torque the lugs.
Test — Restore power, call for cooling, and confirm the contactor pulls in cleanly and the compressor and fan energize.

Signs You Need a Replacement

Outdoor unit won't start on a cooling call.
Loud buzzing, humming, or chattering from the contactor.
Burned, pitted, or welded contact points.
Compressor keeps running after the thermostat is satisfied.

Shipping & Returns

Ships same day on orders placed before 3 PM CST. 30-day hassle-free 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 Single-Pole Contactor f...

$28.95

Frequently Asked Questions

Does this Contactor fit my Tempstar TSA636GKA100 — 30A 24V w/ Shunt | Ships Today?

Yes. This is the factory-specified OEM contactor for the Tempstar TSA636GKA100 — 30A 24V w/ Shunt | 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 contactor on my Tempstar TSA636GKA100 — 30A 24V w/ Shunt | Ships Today?

Difficulty: Medium (30–45 min)
Step 1: Turn off breaker. Step 2: Open condensing unit panel. Step 3: Photograph ALL wiring on the contactor. Step 4: Label each wire with tape. Step 5: Disconnect wires and remove old contactor. Step 6: Mount new contactor, reconnect wires matching your photo. Step 7: Restore power and test.

My AC clicks but the compressor won’t turn on. What’s wrong?

Clicking from the outdoor unit without the compressor starting = worn contactor. The contactor sends power to the compressor. When its contacts are pitted, it clicks but can’t make solid contact. Look for: visible pitting/burn marks on the contactor face, intermittent operation, or buzzing.

Is this contactor 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 contactor?

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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