What amp contactor do I need for my Tempstar system?

The correct replacement for Tempstar model TCA442AKA4 — 1-Pole 35A 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 TCA442AKA4 — 1-Pole 35A 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 Contactor for TCA442AKA4 — 1-Pole 35A 24V Coil | Ships Today

Name: Tempstar Contactor for TCA442AKA4 — 1-Pole 35A 24V Coil | Ships Today
Brand: Tempstar
SKU: 1050839-GEN
Price: 32.95 USD
Availability: InStock

SKU: 1050839-GEN Brand: Tempstar

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Overview

This is a genuine OEM single-pole contactor (part number 1050839) for the Tempstar TCA442AKA4 air conditioning condensing unit. The contactor acts as the high-current switch that powers the compressor and outdoor condenser fan motor on every cooling cycle, energized by the low-voltage 24V signal from the thermostat. With a 35-amp contact rating, it handles the inrush and running load of the compressor while keeping the control circuit safely isolated. A failing contactor typically shows up as a unit that hums without starting, contacts that weld closed and leave the compressor running nonstop, or rapid clicking and no cooling. Swapping in a fresh contactor restores clean, dependable starts and prevents premature compressor wear.

Specifications

Spec	Value
Part Number	1050839
Type	Definite Purpose Contactor, Single Pole (1P)
Brand	Tempstar
Contact Rating	35 Amps
Coil Voltage	24V
Poles	1
Fits Model	TCA442AKA4

Compatibility

This is the factory-specified contactor for the Tempstar TCA442AKA4 condensing unit and the same part used throughout the related ICP / Heil / Comfortmaker family of outdoor units. Verify the part number 1050839 stamped on your existing contactor before ordering to ensure an exact fit.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and the breaker, then confirm zero voltage with a multimeter.
Access — Remove the condenser service panel to reach the electrical box.
Document — Take a clear photo of every wire connection before removal.
Remove — Disconnect the line, load, and 24V coil leads, then unbolt the old contactor.
Install — Secure the new contactor and reconnect all wires per your photo.
Test — Restore power, call for cooling, and verify the compressor and fan engage smoothly.

Signs You Need a Replacement

Loud hum or buzz from the outdoor unit with no compressor start.
Burnt, pitted, or corroded contact points.
Compressor that will not shut off due to welded contacts.
Intermittent cooling and chattering on a thermostat call.

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 TCA442AKA...

$32.95

Frequently Asked Questions

Does this Contactor fit my Tempstar TCA442AKA4 — 1-Pole 35A 24V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the Tempstar TCA442AKA4 — 1-Pole 35A 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 TCA442AKA4 — 1-Pole 35A 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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