What amp contactor do I need for my Tempstar system?

The correct replacement for Tempstar model TCH436AKA3 — 1-Pole 25A 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 TCH436AKA3 — 1-Pole 25A 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 TCH436AKA3 — 1-Pole 25A 24V Coil | Ships Today

Name: Tempstar Contactor for TCH436AKA3 — 1-Pole 25A 24V Coil | Ships Today
Brand: Tempstar
SKU: 1050699-GEN
Price: 24.95 USD
Availability: InStock

SKU: 1050699-GEN Brand: Tempstar

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

Overview

This OEM single-pole definite purpose contactor (part #1050699) is the electrical switch that controls power to the compressor and outdoor fan motor in your Tempstar TCH436AKA3 heat pump. When the thermostat calls for cooling or heating, the 24-volt control coil energizes and pulls the contacts closed, sending line voltage to the compressor. Rated for 25 amps with a 24V coil, it is engineered for reliable, high-cycle switching. Pitted, burned, or chattering contacts are one of the most common causes of an outdoor unit that hums but won't start, or that fails to shut off.

Specifications

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

Compatibility

Direct OEM replacement for the Tempstar TCH436AKA3 heat pump condensing unit. The same 1050699 contactor is also used across many ICP-family units (Tempstar, Heil, Comfortmaker, Arcoaire) sharing this platform. Confirm your unit uses a single-pole 25A / 24V coil contactor before ordering.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and breaker, then verify zero voltage with a multimeter.
Access — Remove the service panel on the condensing unit.
Document — Photograph all wire connections before disconnecting anything.
Remove — Note the line, load, and 24V coil terminals, transfer wires one at a time, then unbolt the old contactor from the bracket.
Install — Mount the new contactor and reconnect each wire to its matching terminal per your photo.
Test — Restore power and confirm the contacts pull in on a call for cool/heat and that the compressor and fan start cleanly.

Signs You Need a Replacement

Outdoor unit hums or buzzes but the compressor won't start
Burned, pitted, or melted contact points
Unit won't shut off because the contacts are welded closed
Chattering or rapid clicking when the thermostat calls

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 TCH436AKA...

$24.95

Frequently Asked Questions

Does this Contactor fit my Tempstar TCH436AKA3 — 1-Pole 25A 24V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the Tempstar TCH436AKA3 — 1-Pole 25A 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 TCH436AKA3 — 1-Pole 25A 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.

Menu