What amp contactor do I need for my Tempstar system?

The correct replacement for Tempstar model T4A330GKA100 — 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 T4A330GKA100 — 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 1-Pole Contactor for T4A330GKA100 — 30A 24V w/ Shunt | Ships Today

Name: Tempstar 1-Pole Contactor for T4A330GKA100 — 30A 24V 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 is a genuine OEM single-pole definite purpose contactor (part number 1172472) for the Tempstar T4A330GKA100 condensing unit. Rated for 30 amps with a 24-volt control coil and an integrated shunt, the contactor is the electrically controlled switch that energizes the compressor and condenser fan motor whenever your thermostat calls for cooling. When the 24V signal reaches the coil, the magnetic field pulls the contacts closed and routes line voltage to the outdoor unit. After thousands of switching cycles the silver contacts pit, burn, and weld, while the coil can fail open. A failing contactor is a leading cause of an outdoor unit that hums but won't start, chatters, or runs nonstop even after the thermostat is satisfied. A fresh contactor restores clean, dependable switching and helps protect the compressor.

Specifications

Spec	Value
Part Number	1172472
Type	Definite Purpose Contactor, 1-Pole
Brand	Tempstar (ICP / Heil family)
Contact Rating	30 Amps
Coil Voltage	24 VAC
Poles	1
Features	Integrated shunt
Fit	OEM Replacement

Compatibility

Engineered as a direct-fit replacement for the Tempstar T4A330GKA100 air conditioner. This contactor is shared across many ICP-built outdoor units (Tempstar, Heil, Comfortmaker, Arcoaire) carrying part number 1172472. Confirm your existing contactor is a 1-pole, 30A unit with a 24V coil before ordering.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and breaker, then verify zero voltage with a multimeter.
Access — Remove the electrical access panel on the condensing unit.
Document — Photograph every wire connection before disconnecting anything.
Remove — Note line, load, and coil terminals, transfer wires one at a time, and unscrew the old contactor from its bracket.
Install — Mount the new contactor, reconnect each wire to the matching terminal per your photo, and verify tight connections.
Test — Restore power, call for cooling, and confirm the contacts pull in and the unit starts cleanly.

Signs You Need a Replacement

Outdoor unit hums or buzzes but the compressor/fan won't start
Visibly burned, pitted, or melted contact points
Contacts chatter or the unit won't shut off when satisfied
Coil reads open or out of spec on a multimeter

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 1-Pole Contactor for T4...

$27.95

Frequently Asked Questions

Does this Contactor fit my Tempstar T4A330GKA100 — 30A 24V w/ Shunt | Ships Today?

Yes. This is the factory-specified OEM contactor for the Tempstar T4A330GKA100 — 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 T4A330GKA100 — 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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