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Carrier HK42FZ053 | Integrated Furnace Control Board | 24V | HSI | OEM

Carrier HK42FZ053 | Integrated Furnace Control Board | 24V | HSI | OEM

Low stock: 1 left

Regular price $480.26 USD
Regular price Sale price $480.26 USD
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Quick Details & Specs

  • Reliable Ignition: Eliminates furnace ignition failure and intermittent heating cycles.

  • OEM Durability: Manufactured by Carrier for long-term resistance to heat and vibration.

  • Fast Troubleshooting: Integrated LED flash codes simplify complex HVAC repairs.

  • Optimized Efficiency: Ensures precise blower timing to maximize airflow comfort.

  • Universal Fit for HK42FZ Series: Replaces multiple legacy boards in Carrier/Bryant/Payne units.

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Specifications

Product Details

  • Brand: Carrier / Factory Authorized Parts
  • Manufacturer: United Technologies / Carrier Corp
  • Part #: HK42FZ053
  • SKU: HK42FZ053-OEM
  • UPC: 822529519159
  • Weight: 3.0 lbs
  • Control Voltage: 24 VAC
  • Line Voltage: 120 VAC
  • Ignition Type: Hot Surface Ignition (HSI)
  • Blower Timings: Fixed and Adjustable Heat/Cool Delays
  • Frequency: 60 Hz

description

Carrier HK42FZ053 | Integrated Furnace Control Board | 24V | HSI | OEM


The Carrier HK42FZ053 is the primary integrated ignition module designed to regulate the operational sequence of high-efficiency heating systems. As a genuine OEM component, this circuit board manages the critical timing for the inducer motor, gas valve, and blower assembly. Engineered specifically for Carrier, Bryant, and Payne furnace series, it ensures precise communication between the thermostat and mechanical hardware. This factory-authorized replacement maintains the specific logic gates and safety timing sequences required to meet original manufacturer specifications for the 58STA and 310AAV series.


Key Features

  • OEM Part Number HK42FZ053: A direct factory replacement ensuring 100% terminal-to-terminal compatibility with existing furnace wiring harnesses.
  • Integrated Relay Control: Resolves common system failures such as unresponsive blowers or intermittent inducer motor operation caused by worn mechanical relays.
  • Continuous Safety Monitoring: Actively tracks flame sensors and limit switches to provide immediate system shutdown if abnormal operating temperatures are detected.
  • Digital Logic Timing: Features factory-calibrated microprocessor timing for ignition trials and blower delays, optimizing heat exchanger performance.
  • On-Board Diagnostics: Includes a built-in LED indicator that provides rapid fault code feedback for identifying pressure switch or ignition lockouts.


Product Details

  • Brand: Carrier / Factory Authorized Parts
  • Manufacturer: United Technologies / Carrier Corp
  • Part #: HK42FZ053
  • SKU: HK42FZ053-OEM
  • UPC: 822529658971
  • Weight: 3.0 lbs
  • Control Voltage: 24 VAC
  • Line Voltage: 120 VAC
  • Ignition Type: Hot Surface Ignition (HSI)
  • Blower Timings: Fixed and Adjustable Heat/Cool Delays
  • Frequency: 60 Hz


🛠️ HVAC Depot Pro Tip

Take a Picture First: Before removing any leads from the original board, photograph the entire wiring layout. Many furnace models utilize similar wire colors for different speed taps; a visual reference prevents swapping the "Heat" and "Cool" terminals. Additionally, inspect the 3-amp or 5-amp blade fuse on the new HK42FZ053 before completing the install—a short in the thermostat wire can often blow this fuse during the swap process.


Cross-Reference

  • Superseded/Legacy:

    HK42FZ034, HK42FZ004, HK42FZ007, HK42FZ008, HK42FZ009, HK42FZ011, HK42FZ013, HK42FZ016
  • Drawing Numbers:

    325878-751, CEPL130424-01
  • White-Rodgers Equivalents:

    50A55-844
  • ICM Equivalent:

    ICM282B


Model Compatibility

  • 310AAV / 310JAV (Suffixes: 024045, 036045, 036070, 048070, 048090, 060090, 060110, 066135)
  • 58DLA / 58DLX (Suffixes: 045-10008, 070-10012, 090-10016, 110-10020, 135-10022)
  • 58STA / 58STX (Suffixes: 045-10108, 070-10112, 090-10116, 110-10120, 135-10122)
  • PG8MAA (Suffixes: 024045, 036045, 036070, 048070, 048090, 060090, 060110, 066135)

Specification

Refund policy

Refund & Return Policy

Last Updated: June 2026

At HVAC Parts & Equipment Depot, customer satisfaction is important to us. This Refund & Return Policy explains how returns, exchanges, and refunds are handled for purchases made through TopHVACParts.com.

Return Eligibility

We accept returns within 30 days of delivery.

To qualify for a return:

  • The item must be unused, uninstalled, and in its original condition.
  • The item must be returned in its original packaging.
  • Model numbers and serial numbers must match the original purchase records.
  • Proof of purchase or order confirmation is required.

Non-Returnable Items

The following items are not eligible for return or refund:

  • Installed or used parts.
  • Products showing signs of installation, modification, or damage caused after delivery.
  • Items missing original packaging.
  • Sale or clearance items.
  • Special-order or custom-order products.
  • Returns requested more than 30 days after delivery.

Restocking Fee

Approved returns may be subject to a 20% restocking fee.

The restocking fee will be deducted from the refund amount after the returned item has been inspected and approved.

Damaged, Defective, or Incorrect Items

If you receive a damaged, defective, or incorrect item, please contact us within 7 days of delivery.

Email: support@tophvacparts.com
Phone: (214) 734-5222

We may request photographs and additional information to help process your claim.

If the claim is approved, we will provide a replacement, exchange, or refund at no additional cost to you.

Exchanges

We replace items only if they are defective, damaged upon arrival, or incorrectly shipped.

To request an exchange, contact us at:

support@tophvacparts.com

Refund Process

Once your return is received and inspected, we will notify you by email regarding approval or rejection of your refund request.

If approved:

  • Refunds will be issued to the original payment method.
  • Processing typically takes 7–14 business days after approval.
  • Your financial institution may require additional time before the refund appears in your account.

Return Shipping

Customers are responsible for return shipping costs unless the return is the result of:

  • Our shipping error,
  • A defective product,
  • A damaged product received upon delivery.

Original shipping charges are non-refundable.

We recommend using a trackable shipping service and purchasing shipping insurance for higher-value items.

Return Address

HVAC Parts & Equipment Depot
1135 E Plano Parkway, Suite 8
Plano, TX 75074
United States

Professional Installation Notice

Many HVAC products require installation by a licensed HVAC professional.

HVAC Parts & Equipment Depot is not responsible for damages resulting from improper installation, misuse, unauthorized modifications, or failure to follow manufacturer instructions.

Special Orders

Special-order products must be picked up within 30 days of purchase unless other arrangements have been approved.

Unclaimed special-order products may be returned to the manufacturer and may be subject to applicable restocking fees.

Contact Us

If you have questions regarding returns, refunds, or exchanges, please contact us:

HVAC Parts & Equipment Depot

Phone: (214) 734-5222
Email: support@tophvacparts.com

Michel & Siso are very knowledgeable and explain everything to where I could understand! Amazing experience! Thank you will always come here for any AC needs. Trustworthy and excellent customer service.

Celest G.
Verified Customer
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