What amp contactor do I need for my Tempstar system?

The correct replacement for Tempstar model TCA242AKA1 — 1-Pole 25A 24V | 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 TCA242AKA1 — 1-Pole 25A 24V | 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 TCA242AKA1 — 1-Pole 25A 24V | Ships Today

Name: Tempstar Contactor for TCA242AKA1 — 1-Pole 25A 24V | Ships Today
Brand: Tempstar
SKU: 1050699-GEN
Price: 24.95 USD
Availability: InStock

SKU: 1050699-GEN Brand: Tempstar

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Overview

This is a genuine OEM single-pole definite purpose contactor (part #1050699) for the Tempstar TCA242AKA1 condensing unit. The contactor is the electrically operated switch that energizes the compressor and condenser fan motor whenever the thermostat calls for cooling. A 24V control signal pulls in the coil, closing the line-voltage contacts that carry power to the outdoor unit. Rated for 25 amps with a 24-volt coil, this 1-pole contactor handles the switching load for residential single-phase systems. Common failure symptoms include pitted or welded contacts, a buzzing or chattering coil, the outdoor unit not starting on a cooling call, or the compressor and fan continuing to run after the call ends.

Specifications

Spec	Value
Part Number	1050699
Type	Definite Purpose Contactor, 1-Pole
Brand	Tempstar (ICP / Heil)
Contact Rating	25 Amps
Coil Voltage	24 VAC
Poles	1
Fit	OEM Direct Replacement

Compatibility

This contactor is a direct OEM fit for the Tempstar TCA242AKA1 air conditioner condensing unit and is shared across many ICP-family condensers (Tempstar, Heil, Comfortmaker, Arcoaire) that originally shipped with part 1050699. Always confirm your existing contactor's amp and coil-voltage rating against this 25A / 24V spec before ordering.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and the breaker, then verify zero voltage with a multimeter across the line terminals.
Access — Remove the condenser service panel to expose the electrical compartment.
Document — Photograph every wire and terminal position before disconnecting anything.
Remove — Transfer wires one at a time, or label them, then unscrew the old contactor from the bracket.
Install — Mount the new contactor, reconnect line, load, and 24V coil leads exactly per your photo.
Test — Restore power, call for cooling, and confirm the coil pulls in cleanly and the unit starts.

Signs You Need a Replacement

Outdoor unit won't start on a cooling call even though the thermostat is calling.
Loud buzzing, humming, or chattering from the contactor.
Burnt, pitted, or welded contacts visible on inspection.
Compressor and fan keep running after the cooling call ends (stuck closed).

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 Contactor for TCA242AKA...

$24.95

Frequently Asked Questions

Does this Contactor fit my Tempstar TCA242AKA1 — 1-Pole 25A 24V | Ships Today?

Yes. This is the factory-specified OEM contactor for the Tempstar TCA242AKA1 — 1-Pole 25A 24V | 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 TCA242AKA1 — 1-Pole 25A 24V | 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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