What amp contactor do I need for my Tempstar system?

The correct replacement for Tempstar model TCA724GKA100 — 24V Coil with 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 TCA724GKA100 — 24V Coil with 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 1-Pole 30A Contactor for TCA724GKA100 — 24V Coil with Shunt | Ships Today

Name: Tempstar 1-Pole 30A Contactor for TCA724GKA100 — 24V Coil with Shunt | Ships Today
Brand: Tempstar
SKU: 1172472-GEN
Price: 34.00 USD
Availability: InStock

SKU: 1172472-GEN Brand: Tempstar

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

Overview

This OEM single-pole contactor (part number 1172472) is the main switching relay for your Tempstar TCA724GKA100 condensing unit. Its 24V coil is energized by the thermostat circuit, closing a 30-amp line-voltage contact to power the compressor and condenser fan motor. The built-in shunt provides the auxiliary connection for the run capacitor circuit. Contactors fail from pitted or welded contacts, an open or burned coil, and chattering caused by low control voltage — any of which leaves the compressor unable to start or running intermittently.

Specifications

Spec	Value
Part Number	1172472
Type	Definite-Purpose Contactor, 1-Pole, with Shunt
Brand	Tempstar
Rating	30 Amps
Poles	1
Coil Voltage	24V
Fit	OEM

Compatibility

Factory-specified for the Tempstar TCA724GKA100 condensing unit. This 1-pole 30A 24V-coil contactor is widely used across ICP-built outdoor units sold under the Tempstar, Heil, Comfortmaker, and Carrier/Bryant ICP families. Verify the part number and amp rating against your existing contactor before ordering.

Installation Guide

Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter.
Access — Remove the condensing-unit control-box service panel.
Document — Photograph every line, load, coil, and shunt connection before disconnecting.
Remove — Transfer wires one at a time, or label all leads, then unscrew the old contactor from the panel.
Install — Mount the new contactor and reconnect each wire to the matching terminal per your photo.
Test — Restore power, call for cooling, and confirm the contactor pulls in cleanly with no chatter.

Signs You Need a Replacement

Compressor and condenser fan will not start on a cooling call.
Buzzing, humming, or chattering from the contactor.
Visibly pitted, burned, or welded contacts.
Coil reads open on a meter or the contactor stays closed after the call ends.

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 1-Pole 30A Contactor fo...

$34.00

Frequently Asked Questions

Does this Contactor fit my Tempstar TCA724GKA100 — 24V Coil with Shunt | Ships Today?

Yes. This is the factory-specified OEM contactor for the Tempstar TCA724GKA100 — 24V Coil with 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 TCA724GKA100 — 24V Coil with 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.

Menu