ICP Fan Coil Control Board for WAHM362A1 — OEM Replacement | Ships Today

Overview

This OEM fan coil control board (part number 1172975) is the electronic brain of your ICP WAHM362A1 air handler. It manages blower operation, electric heat staging, low-voltage thermostat inputs, and safety interlocks, coordinating every call for heating and cooling. When the board fails, symptoms range from a blower that won't run or won't shut off, to erratic heat-strip behavior, to a system that ignores the thermostat entirely. Replacing a failed control board with the correct OEM part restores proper sequencing and protects connected components.

Specifications

Compatibility

Direct OEM replacement for the ICP WAHM362A1 fan coil air handler and matching Tempstar, Heil, and Comfortmaker units that use this fan coil control board. Confirm the board's connector layout against your existing board before installing.

Installation Guide

1. Safety First — Disconnect power at the breaker and verify zero voltage with a multimeter.
2. Access — Remove the air handler control-panel cover to expose the board.
3. Document — Photograph every plug, terminal, and wire color before disconnecting.
4. Remove — Unplug all connectors, release the board standoffs/screws, and lift out the failed board.
5. Install — Seat the new board on its standoffs and reconnect every harness in the same positions per your photo.
6. Test — Restore power and verify correct blower start/stop, heat staging, and thermostat response.

Signs You Need a Replacement

• Blower runs continuously or won't start at all.
• Electric heat strips fail to energize or stage incorrectly.
• System ignores thermostat calls or behaves erratically.
• Visible burnt traces, scorched relays, or blown components on the board.

Shipping & Returns

Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.