What amp contactor do I need for my Tempstar system?

The correct replacement for Tempstar model T4H360GKA100 — 24V Coil | 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 T4H360GKA100 — 24V Coil | 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 2-Pole 40A Contactor for T4H360GKA100 — 24V Coil | Ships Today

Name: Tempstar 2-Pole 40A Contactor for T4H360GKA100 — 24V Coil | Ships Today
Brand: Tempstar
SKU: 1172786-GEN
Price: 36.00 USD
Availability: InStock

SKU: 1172786-GEN Brand: Tempstar

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Overview

This is the OEM 2-pole, 40-amp contactor (Part #1172786) with a 24V coil for the Tempstar T4H360GKA100 heat pump. The contactor is the heavy-duty relay that the thermostat (via the 24V control circuit) uses to switch high-voltage line power to the compressor and condenser fan motor. Contactors wear out: the silver contacts pit and burn, the coil weakens, and the points can stick closed or chatter. A failed contactor is one of the most common reasons a condensing unit won't start, hums, or runs when it shouldn't.

Specifications

Spec	Value
Part Number	1172786
Type	2-Pole Contactor
Brand	Tempstar (ICP / Heil)
Contact Rating	40A
Coil Voltage	24V
Poles	2
Application	Compressor & Condenser Fan
Fits Model	T4H360GKA100

Compatibility

Direct OEM replacement for the Tempstar/Heil/ICP T4H360GKA100. This 2-pole 40A/24V contactor is interchangeable across many ICP-family condensing units of the same rating — confirm pole count, amp rating, and 24V coil voltage match before installing.

Installation Guide

Safety First — Disconnect power at the breaker and disconnect, and verify zero voltage with a multimeter on the line terminals.
Access — Remove the outdoor unit's electrical service panel.
Document — Photograph all line, load, and 24V coil wires before disconnecting.
Remove — Move wires one at a time from the old contactor to the new one (transfer in place to avoid mistakes), then unscrew the old contactor from its bracket.
Install — Mount the new 1172786 contactor and verify every terminal matches your photos.
Test — Restore power, call for cooling, and confirm the contactor pulls in and the compressor/fan start.

Signs You Need a Replacement

Unit hums but compressor and fan won't start.
Burnt, pitted, or welded contacts.
Chattering or buzzing contactor on a cooling call.
Condenser keeps running after the thermostat is satisfied (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 2-Pole 40A Contactor fo...

$36.00

Frequently Asked Questions

Does this Contactor fit my Tempstar T4H360GKA100 — 24V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the Tempstar T4H360GKA100 — 24V Coil | 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 T4H360GKA100 — 24V Coil | 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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