What amp contactor do I need for my Tempstar system?

The correct replacement for Tempstar model TCH442AKD1 — OEM 1050839 | 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 TCH442AKD1 — OEM 1050839 | 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 35A 24V Contactor for TCH442AKD1 — OEM 1050839 | Ships Today

Name: Tempstar 1-Pole 35A 24V Contactor for TCH442AKD1 — OEM 1050839 | Ships Today
Brand: Tempstar
SKU: 1050839-GEN
Price: 26.00 USD
Availability: InStock

SKU: 1050839-GEN Brand: Tempstar

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Overview

This genuine OEM single-pole definite-purpose contactor (part 1050839) is the main switching relay for the Tempstar TCH442AKD1 condensing unit. Rated 35 amps with a 24V control coil, it energizes when the thermostat calls for cooling, sending line voltage to the compressor and condenser fan motor. Contactors are high-wear components: their silver contacts arc every cycle and eventually pit, weld, or burn, while ants and debris can jam the plunger. A failing contactor causes hard starts, chattering, buzzing, or a unit that won't run at all even though the thermostat is calling. Replacing this wear item restores clean, reliable switching and protects the compressor from voltage drop and chatter damage.

Specifications

Spec	Value
Part Number	1050839
Type	Definite Purpose Contactor, Single-Pole
Brand	Tempstar (ICP)
Contact Rating	35A
Coil Voltage	24V
Poles	1
Fits Model	TCH442AKD1
Fitment	OEM direct replacement

Compatibility

Designed for the Tempstar TCH442AKD1 and widely shared across ICP-family condensing units (Heil, Comfortmaker, Tempstar) using a 35A 1-pole 24V contactor. Confirm amp rating, pole count, and 24V coil before ordering.

Installation Guide

Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter.
Access — Remove the control-panel service cover.
Document — Photograph all line, load, and 24V coil wires before disconnecting.
Remove — Unscrew the old contactor from its mounting and transfer wires one at a time.
Install — Mount the new contactor and reconnect each wire to the matching terminal per your photo.
Test — Restore power and confirm the contactor pulls in on a cooling call and the compressor and fan start.

Signs You Need a Replacement

Loud buzzing, humming, or chattering from the contactor.
Pitted, blackened, or welded contacts.
Compressor/fan won't start on a cooling call.
Plunger sticks or won't pull in fully.

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 1-Pole 35A 24V Contacto...

$26.00

Frequently Asked Questions

Does this Contactor fit my Tempstar TCH442AKD1 — OEM 1050839 | Ships Today?

Yes. This is the factory-specified OEM contactor for the Tempstar TCH442AKD1 — OEM 1050839 | 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 TCH442AKD1 — OEM 1050839 | 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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