What amp contactor do I need for my Tempstar system?

The correct replacement for Tempstar model T2H342GKA100 — 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 T2H342GKA100 — 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 T2H342GKA100 — 24V Coil with Shunt | Ships Today

Name: Tempstar 1-Pole 30A Contactor for T2H342GKA100 — 24V Coil with Shunt | Ships Today
Brand: Tempstar
SKU: 1172472-GEN
Price: 29.00 USD
Availability: InStock

SKU: 1172472-GEN Brand: Tempstar

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Overview

This OEM single-pole definite-purpose contactor (part number 1172472) is the electrical switch that powers the compressor and condenser fan in your Tempstar T2H342GKA100 heat pump. When the thermostat calls for cooling or heating, the 24V control coil pulls the contacts closed, sending line voltage to the outdoor unit. This contactor is rated for 30 amps and includes a factory shunt for proper circuit protection. Contactors are one of the most common failure points in any condensing unit — the contacts pit, burn, or weld over thousands of cycles, and the coil can lose its magnetic pull. A failing contactor leaves your heat pump unable to start even when the rest of the system is healthy.

Specifications

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

Compatibility

Engineered as a direct OEM replacement for the Tempstar T2H342GKA100 heat pump. The same 1172472 contactor is used across many ICP-family condensing units (Tempstar, Heil, Comfortmaker, and select Carrier/Bryant ICP-built models). Always confirm the original contactor's amp rating and coil voltage before ordering.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and breaker; verify zero voltage at the contactor terminals with a multimeter.
Access — Remove the condenser unit's electrical access panel.
Document — Photograph every wire and terminal position before disconnecting anything.
Remove — Label and pull the line, load, and 24V coil leads, then unscrew the old contactor from its bracket.
Install — Mount the new contactor, then reconnect each wire to the matching terminal per your photo.
Test — Restore power and confirm the contacts pull in on a call for cooling and the compressor/fan start.

Signs You Need a Replacement

Outdoor unit won't start, or only hums, on a cooling/heating call
Visible pitting, burning, or melted plastic on the contactor
Chattering or buzzing from the contactor body
Contacts that stick closed and won't shut off the compressor

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...

$29.00

Frequently Asked Questions

Does this Contactor fit my Tempstar T2H342GKA100 — 24V Coil with Shunt | Ships Today?

Yes. This is the factory-specified OEM contactor for the Tempstar T2H342GKA100 — 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 T2H342GKA100 — 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.

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