What are the specs for this Control Board?

The correct replacement for Tempstar model T2A324GKD100 — ComfortAlert Diagnostics Module | 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 T2A324GKD100 — ComfortAlert Diagnostics Module | Ships Today.

Is this control board 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 Control Board for T2A324GKD100 — ComfortAlert Diagnostics Module | Ships Today

Name: Tempstar Control Board for T2A324GKD100 — ComfortAlert Diagnostics Module | Ships Today
Brand: Tempstar
SKU: 1177402-GEN
Price: 142.00 USD
Availability: InStock

SKU: 1177402-GEN Brand: Tempstar

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

Overview

This is the genuine OEM ComfortAlert control board (part number 1177402) for the Tempstar T2A324GKD100 condensing unit. The ComfortAlert diagnostics module continuously monitors the compressor and system operation, detecting electrical and mechanical faults before they cause a full system failure. It reads compressor current, voltage, and run behavior, then flashes coded alerts that let a technician pinpoint problems such as locked rotor, low voltage, short cycling, or contactor issues. When this board fails you may see the system not responding to thermostat calls, the compressor failing to start, erratic cycling, or no diagnostic LED activity at all. Replacing the board with the correct OEM part restores reliable protection and accurate fault reporting.

Specifications

Spec	Value
Part Number	1177402
Type	ComfortAlert Diagnostics Control Board
Brand	Tempstar (ICP / Heil)
Function	Compressor monitoring & fault diagnostics
Fitment	OEM direct replacement
Control Voltage	24V

Compatibility

Direct-fit replacement for the Tempstar T2A324GKD100 condensing unit. This board is shared across many ICP-family outdoor units (Tempstar, Heil, Comfortmaker, and related Carrier/Bryant ICP platforms). Always confirm the printed OEM number 1177402 against your existing board 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 on the condensing unit.
Document — Photograph all wiring and connector positions before disconnecting anything.
Remove — Unplug the low-voltage harness and compressor sense leads, release the board mounting standoffs, and lift out the old board.
Install — Mount the new board on the standoffs and reconnect each harness exactly per your photos.
Test — Restore power, place a call for cooling, and confirm normal operation and a steady (no-fault) diagnostic LED.

Signs You Need a Replacement

System does not respond to thermostat cooling calls
Compressor will not start or short cycles repeatedly
No diagnostic LED activity or stuck/erratic fault codes
Visible burn marks, corrosion, or damaged connectors on the board

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 Control Board for T2A32...

$142.00

Frequently Asked Questions

Does this Control Board fit my Tempstar T2A324GKD100 — ComfortAlert Diagnostics Module | Ships Today?

Yes. This is the factory-specified OEM control board for the Tempstar T2A324GKD100 — ComfortAlert Diagnostics Module | 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 control board on my Tempstar T2A324GKD100 — ComfortAlert Diagnostics Module | Ships Today?

Difficulty: Advanced (1–2 hrs)
Step 1: Turn off breaker. Step 2: PHOTOGRAPH all wire connections before touching anything. Step 3: Label each wire with tape. Step 4: Disconnect all wires, remove old board. Step 5: Mount new board, reconnect all wires matching your photo exactly. Step 6: Restore power and test all modes. Exact part number match is critical.

My HVAC system is completely dead. What could be wrong?

Completely dead HVAC (no LED on board) = failed control board or blown fuse. Check board fuse first (3A or 5A, costs $1–$5). If fuse is good and board has power but no LED, board is dead. Always photograph wiring before replacing.

Is this control board 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 control board?

OEM essential. Control boards are model-specific with precise firmware and connector layouts. Aftermarket boards rarely match all functions and can cause intermittent failures or safety issues. Always match the exact OEM part number.

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