What are the specs for this Control Board?

The correct replacement for ICP model YK030G2 — Heat Pump 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 ICP equipment which lists the model number YK030G2 — Heat Pump Module | Ships Today.

ICP

ICP Defrost Control Board for YK030G2 — Heat Pump Module | Ships Today

Name: ICP Defrost Control Board for YK030G2 — Heat Pump Module | Ships Today
Brand: ICP
SKU: 34332101
Price: 194.94 USD
Availability: InStock

SKU: 34332101 Brand: ICP

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Overview

This OEM defrost control board (part number 34332101) is the electronic brain that manages the defrost cycle on your ICP / Heil / Tempstar YK030G2 heat pump. It monitors the defrost thermostat and ambient conditions, then periodically reverses the unit to melt frost and ice off the outdoor coil so the system can keep extracting heat efficiently in cold weather. The board sequences the reversing valve, controls the compressor and outdoor fan during defrost, and energizes auxiliary heat at the right moments. When this board fails, the heat pump may ice over solid, blow cold air on a heat call, short-cycle, fail to enter or exit defrost, or stop responding to the thermostat entirely. Because it coordinates several high-cost components, a failing defrost board can masquerade as a much bigger problem — replacing the board is usually the correct, economical fix.

Specifications

Spec	Value
OEM Part Number	34332101
Type	Defrost Control Board
Control Voltage	24V
Function	Defrost timing, reversing valve & aux heat control
Brand	ICP (Heil / Tempstar / Comfortmaker)
Fits Model	YK030G2

Compatibility

A direct OEM replacement for the ICP YK030G2 heat pump and shared across compatible Heil, Tempstar, and Comfortmaker outdoor units using this defrost board. Match the existing board's part number and connector layout before installing.

Installation Guide

Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage at the board with a multimeter.
Access — Remove the control-box service panel on the condensing unit.
Document — Photograph every wire, plug, and terminal on the existing board before unplugging.
Remove — Unplug the harness connectors and unscrew or unclip the old board from its standoffs.
Install — Mount the new board and reconnect each plug and lead exactly per your photo.
Test — Restore power and confirm the heat pump heats normally and initiates/terminates defrost correctly.

Signs You Need a Replacement

Outdoor coil ices or frosts over and never defrosts
Heat pump blows cold air on a call for heat
Unit short-cycles or won't switch between heat and defrost
No response from the outdoor unit despite a thermostat 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 YK...

$194.94

Frequently Asked Questions

Does this Control Board fit my ICP YK030G2 — Heat Pump Module | Ships Today?

Yes. This is the factory-specified OEM control board for the ICP YK030G2 — Heat Pump 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 ICP YK030G2 — Heat Pump 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 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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