What amp contactor do I need for my Tempstar system?

The correct replacement for Tempstar model T4H736GKB100 — 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 T4H736GKB100 — 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 T4H736GKB100 — 24V Coil w/Shunt | Ships Today

Name: Tempstar 1-Pole 30A Contactor for T4H736GKB100 — 24V Coil w/Shunt | Ships Today
Brand: Tempstar
SKU: 1172472-GEN
Price: 26.00 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 T4H736GKB100 heat pump. Rated for 30 amps with a 24-volt control coil and an integrated shunt, the contactor is the electrical switch that energizes the compressor and outdoor fan motor whenever the thermostat calls for heating or cooling. When the 24V coil is energized, it pulls the contacts closed and sends line voltage to the compressor; when the call ends, the coil de-energizes and the contacts open. Because it cycles on every run, the contacts and coil are among the most common wear items in a condensing unit. A failing contactor produces pitted, burned, or welded contacts, a buzzing coil, or chattering that prevents a clean start.

Specifications

Spec	Value
Part Number	1172472
Type	Definite Purpose Contactor
Brand	Tempstar (ICP / Heil)
Poles	1 (single-pole, with shunt)
Contact Rating	30 Amps
Coil Voltage	24 VAC
Fits Model	T4H736GKB100

Compatibility

Directly fits the Tempstar T4H736GKB100 heat pump and other ICP-family (Heil, Comfortmaker, Tempstar) condensing units that specify OEM contactor 1172472. Always verify the part number on your existing contactor 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 all wire positions before disconnecting anything.
Remove — Note the L1/T1, L2/T2, and 24V coil terminals, then remove the wires and unscrew the old contactor from the bracket.
Install — Mount the new contactor and reconnect each wire exactly per your photo, matching line, load, and coil terminals.
Test — Restore power and confirm the contactor pulls in cleanly on a thermostat call with no chatter.

Signs You Need a Replacement

Compressor and fan won't start, or start intermittently
Loud buzzing or humming from the contactor coil
Visibly pitted, burned, or welded contacts
Unit runs continuously and won't shut off (stuck-closed contacts)

Shipping & Returns

Ships same day on orders placed 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...

$26.00

Frequently Asked Questions

Does this Contactor fit my Tempstar T4H736GKB100 — 24V Coil w/Shunt | Ships Today?

Yes. This is the factory-specified OEM contactor for the Tempstar T4H736GKB100 — 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 T4H736GKB100 — 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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