What are the specs for this Control Board?

The correct replacement for ICP model WCH5304GKA100 — Heat Pump | 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 ICP equipment which lists the model number WCH5304GKA100 — Heat Pump | Ships Today.

ICP

ICP Defrost Control Board for WCH5304GKA100 — Heat Pump | Ships Today

Name: ICP Defrost Control Board for WCH5304GKA100 — Heat Pump | Ships Today
Brand: ICP
SKU: 1173636
Price: 168.94 USD
Availability: InStock

SKU: 1173636 Brand: ICP

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Overview

This OEM defrost control board (part number 1173636) fits the ICP Tempstar Heil heat pump model WCH5304GKA100. In heat-pump mode the board monitors coil temperature and run time to initiate and terminate the defrost cycle, switching the reversing valve and controlling the condenser fan so frost is cleared from the outdoor coil. A failed board commonly causes a coil that ices over, a heat pump stuck in defrost, no defrost at all, or erratic fan and reversing-valve behavior.

Specifications

Spec	Value
Part Number	1173636
Type	Defrost Control Board
Brand	ICP (Tempstar / Heil)
Application	Heat Pump
Fitment	OEM

Compatibility

Direct-fit replacement for the ICP Tempstar Heil heat pump model WCH5304GKA100 and related WCH5304 series outdoor units. Verify the board part number and connector layout against your existing board before installing.

Installation Guide

Safety First — Disconnect power at the breaker and verify zero voltage with a multimeter.
Access — Remove the control compartment service panel.
Document — Photograph every connector and wire position before disconnecting.
Remove — Unplug each harness, release the standoffs, and lift out the old board.
Install — Seat the new board on the standoffs and reconnect each harness per your photo.
Test — Restore power, run a defrost cycle, and confirm proper reversing-valve and fan operation.

Signs You Need a Replacement

Outdoor coil ices over and does not clear.
Heat pump stuck in or never enters defrost.
Reversing valve or condenser fan behaves erratically.
No response from the board on a defrost 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

ICP Defrost Control Board for WC...

$168.94

Frequently Asked Questions

Does this Control Board fit my ICP WCH5304GKA100 — Heat Pump | Ships Today?

Yes. This is the factory-specified OEM control board for the ICP WCH5304GKA100 — Heat Pump | 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 ICP WCH5304GKA100 — Heat Pump | 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 ICP 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 ICP 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.

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