What are the specs for this Control Board?

The correct replacement for ICP model WAHM602A1 — OEM Air Handler Board | 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 WAHM602A1 — OEM Air Handler Board | Ships Today.

ICP

ICP Fan Coil Control Board for WAHM602A1 — OEM Air Handler Board | Ships Today

Name: ICP Fan Coil Control Board for WAHM602A1 — OEM Air Handler Board | Ships Today
Brand: ICP
SKU: 1172975
Price: 207.94 USD
Availability: InStock

SKU: 1172975 Brand: ICP

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Overview

This OEM fan coil control board (part number 1172975) is the electronic brain of the ICP WAHM602A1 air handler. It receives the thermostat's low-voltage calls and sequences the blower motor, manages the 24V control circuit, and coordinates auxiliary/electric heat staging where equipped. When a control board fails, symptoms range from a blower that won't run (or runs constantly) to no response from the thermostat, intermittent operation, or visible scorching and failed relays on the board. Boards typically fail from power surges, lightning, overheated relay contacts, or corrosion in humid air handler closets.

Specifications

Spec	Value
Part Number	1172975
Type	Fan Coil Control Board
Brand	ICP (Tempstar / Heil)
Function	Blower / 24V control management
Application	Air Handler / Fan Coil

Compatibility

Designed as the factory replacement control board for the ICP WAHM602A1 fan coil air handler. The 1172975 board is also used across related Tempstar, Heil, and Comfortmaker fan coil units in the same family. Match your board's part number and connector layout before installing.

Installation Guide

Safety First — Disconnect power at the breaker and verify zero voltage with a multimeter before servicing.
Access — Remove the air handler service panel to expose the control board.
Document — Photograph every wire harness, plug, and terminal location before disconnecting.
Remove — Unplug each connector, release the board standoffs/screws, and lift out the failed board.
Install — Mount the new 1172975 board and reconnect every harness exactly as photographed.
Test — Restore power and run a heat and cool call to confirm the blower energizes and staging operates correctly.

Signs You Need a Replacement

Blower won't start, or runs continuously regardless of thermostat setting.
No response to thermostat calls even with good 24V power present.
Visible burnt traces, scorched relays, or a burning smell from the board.
Intermittent or erratic blower and heat operation.

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 Fan Coil Control Board for W...

$207.94

Frequently Asked Questions

Does this Control Board fit my ICP WAHM602A1 — OEM Air Handler Board | Ships Today?

Yes. This is the factory-specified OEM control board for the ICP WAHM602A1 — OEM Air Handler Board | 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 WAHM602A1 — OEM Air Handler Board | 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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