What amp contactor do I need for my Tempstar system?

The correct replacement for Tempstar model TCH624GKA300 — 24V Coil 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 TCH624GKA300 — 24V Coil 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 1-Pole 30A Contactor for TCH624GKA300 — 24V Coil w/ Shunt | Ships Today

Name: Tempstar 1-Pole 30A Contactor for TCH624GKA300 — 24V Coil w/ Shunt | Ships Today
Brand: Tempstar
SKU: 1172472-GEN
Price: 27.95 USD
Availability: InStock

SKU: 1172472-GEN Brand: Tempstar

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Overview

This OEM 1-pole, 30-amp definite purpose contactor (part number 1172472) is the high-voltage switch that powers the compressor and condenser fan on your Tempstar TCH624GKA300 heat pump. When the 24V coil energizes on a call from the thermostat, the contactor pulls in and sends line voltage to the compressor; the built-in shunt provides the additional terminal path used in this unit's wiring. Contactors are one of the most common HVAC failure points — the contacts pit, burn, and weld from constant arcing. A buzzing or chattering contactor, a condenser that hums but won't start, or contacts that stay closed after the thermostat is satisfied all indicate it's time to replace it.

Specifications

Spec	Value
Part Number	1172472
Type	1-Pole Definite Purpose Contactor w/ Shunt
Brand	Tempstar (ICP / Heil)
Contact Rating	30 Amps
Coil Voltage	24V
Poles	1
Fitment	OEM Replacement

Compatibility

A direct OEM replacement for the Tempstar TCH624GKA300 heat pump. As a genuine ICP/Heil-family part, this 30A 24V contactor with shunt also fits many comparable Tempstar, Heil, Comfortmaker, and ICP condensing units and heat pumps. Confirm the 1172472 part number and the shunt terminal configuration on your existing contactor before ordering.

Installation Guide

Safety First — Disconnect power at the breaker and service disconnect, then verify zero voltage with a multimeter across the line terminals.
Access — Remove the condensing unit's service panel to reach the contactor.
Document — Photograph all line, load, coil, and shunt wire connections before disconnecting.
Remove — Disconnect each wire, then unscrew the old contactor from its mounting base.
Install — Mount the new 1172472 contactor and reconnect every wire exactly as photographed, including the shunt lead.
Test — Restore power and confirm the contactor pulls in on a thermostat call and the compressor and fan start normally.

Signs You Need a Replacement

Loud buzzing, humming, or chattering from the contactor
Burned, pitted, or welded contacts visible on inspection
Compressor and fan won't start even though the coil is getting 24V
Unit keeps running after the thermostat call ends (stuck contacts)

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...

$27.95

Frequently Asked Questions

Does this Contactor fit my Tempstar TCH624GKA300 — 24V Coil w/ Shunt | Ships Today?

Yes. This is the factory-specified OEM contactor for the Tempstar TCH624GKA300 — 24V Coil 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 TCH624GKA300 — 24V Coil 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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