What amp contactor do I need for my Tempstar system?

The correct replacement for Tempstar model TSA542GKA101 — 1-Pole 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 TSA542GKA101 — 1-Pole 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 Contactor for TSA542GKA101 — 1-Pole 30A 24V w/ Shunt | Ships Today

Name: Tempstar Contactor for TSA542GKA101 — 1-Pole 30A 24V w/ Shunt | Ships Today
Brand: Tempstar
SKU: 1172472-GEN
Price: 29.00 USD
Availability: InStock

SKU: 1172472-GEN Brand: Tempstar

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

Overview

This is a genuine OEM single-pole definite purpose contactor (OEM part number 1172472) for the Tempstar TSA542GKA101 condensing unit. Rated for 30 amps with a 24-volt control coil and an integrated shunt, this contactor is the electrical switch that energizes the compressor and condenser fan motor whenever the thermostat calls for cooling. The 24V coil pulls the main contacts closed, sending line voltage to the outdoor unit; when the call ends the contacts open and the system shuts down. Because the contacts arc on every cycle, the contactor is one of the most common wear items in an HVAC system. A failed contactor often shows pitted, welded, or chattering contacts and is a leading cause of "outdoor unit won't start" or "unit won't shut off" service calls.

Specifications

Spec	Value
OEM Part Number	1172472
Type	Definite Purpose Contactor, 1-Pole, with Shunt
Brand	Tempstar
Contact Rating	30 Amps
Coil Voltage	24 VAC
Poles	1
Fits Model	TSA542GKA101

Compatibility

This contactor is the factory replacement for the Tempstar TSA542GKA101 air conditioning condenser. The same 1172472 contactor is shared across many ICP-family outdoor units (Tempstar, Heil, Comfortmaker) of similar tonnage. Always confirm the printed part number on your existing contactor before installing.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and breaker, then verify zero voltage with a multimeter at the contactor terminals.
Access — Remove the condenser service panel to expose the control compartment.
Document — Take a clear photo of every wire and terminal position before disconnecting.
Remove — Pull the line and load wires off the old contactor, remove the two mounting screws, and lift it out.
Install — Mount the new contactor, then reconnect each wire to the matching terminal per your photo, including the 24V coil leads.
Test — Restore power and confirm the contactor pulls in on a cooling call and that the compressor and fan energize.

Signs You Need a Replacement

Outdoor unit won't start even though the thermostat is calling for cooling
Loud humming, buzzing, or chattering from the contactor
Visibly pitted, burned, or welded contacts
Unit will not shut off because the contacts are stuck closed

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 Contactor for TSA542GKA...

$29.00

Frequently Asked Questions

Does this Contactor fit my Tempstar TSA542GKA101 — 1-Pole 30A 24V w/ Shunt | Ships Today?

Yes. This is the factory-specified OEM contactor for the Tempstar TSA542GKA101 — 1-Pole 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 TSA542GKA101 — 1-Pole 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.

Menu