ICP Furnace Control Board for SUP20E230V1IA – OEM B0353101 w/ Mounting Plate | Ships Today

Overview

This OEM control board package for the ICP SUP20E230V1IA includes the genuine B0353101 circuit board and the matching B03529 control-board mounting plate. The control board is the brain of the unit — it sequences the blower, manages safety lockouts, reads thermostat calls, and drives the 24V control circuit. When it fails you typically see no response to a thermostat call, blower that won't start or won't stop, flashing diagnostic LED fault codes, or a unit that locks out repeatedly. Replacing the board with the correct OEM part restores reliable, code-compliant operation and avoids the guesswork of a universal retrofit.

Specifications

Compatibility

Built for the ICP SUP20E230V1IA and shared across ICP-family units marketed under Heil, Tempstar, and Comfortmaker. Match the printed B0353101 number on your existing board before ordering, as ICP uses several visually similar boards.

Installation Guide

1. Safety First – Disconnect power and verify zero voltage with a multimeter before touching the board.
2. Access – Remove the control-compartment service panel.
3. Document – Photograph every wire and connector position on the old board.
4. Remove – Unplug the harnesses, unscrew the board from the B03529 plate, and lift it out.
5. Install – Mount the new board on the plate and reconnect each harness exactly per your photo.
6. Test – Restore power, send a thermostat call, and confirm proper blower and ignition sequencing with no fault codes.

Signs You Need a Replacement

• No response to a thermostat heat or cool call
• Blower runs constantly or never engages
• Repeated lockouts or flashing LED fault codes
• Visible burn marks, scorching, or swollen components on the board

Shipping & Returns

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