What are the specs for this Control Board?

The correct replacement for ICP model YG030G — 34332101 Heat Pump 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 YG030G — 34332101 Heat Pump Board | Ships Today.

ICP

ICP Defrost Control Board for YG030G — 34332101 Heat Pump Board | Ships Today

Name: ICP Defrost Control Board for YG030G — 34332101 Heat Pump Board | Ships Today
Brand: ICP
SKU: 34332101
Price: 188.50 USD
Availability: InStock

SKU: 34332101 Brand: ICP

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Overview

The 34332101 Defrost Control Board is the OEM brain of the outdoor section on the ICP / Tempstar / Heil YG030G heat pump. It monitors coil temperature and run time, then initiates and terminates the defrost cycle so frost cannot choke airflow across the outdoor coil during cold-weather heating. The board energizes the reversing valve, controls the compressor contactor, switches the outdoor fan, and brings on auxiliary heat during defrost. When it fails, the system loses its ability to shed ice — leading to a frozen outdoor unit, weak heating, or a unit that never defrosts (or defrosts constantly). This is a direct OEM replacement, not a universal substitute, so timing logic and terminal layout match the original exactly.

Specifications

Spec	Value
Part Number	34332101
Type	Defrost Control Board
Brand	ICP / Tempstar / Heil
Control Voltage	24V
Function	Timed/demand defrost, reversing valve & contactor control
Fitment	OEM direct replacement

Compatibility

Engineered for the ICP Tempstar Heil YG030G heat pump and other ICP-family outdoor units that originally shipped with control board 34332101. Always confirm the printed part number on your existing board before ordering, as ICP used several defrost boards across model years.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and breaker, then verify zero voltage with a multimeter.
Access — Remove the outdoor unit's control-panel service cover.
Document — Photograph every wire and terminal position before disconnecting anything.
Remove — Label and unplug the low-voltage harness, sensor leads, and high-voltage terminals, then unscrew the old board from its standoffs.
Install — Mount the new 34332101 board, reconnect each wire exactly per your photos, and seat the defrost thermostat/sensor lead firmly.
Test — Restore power, run a heating cycle, and force/observe a defrost to confirm the reversing valve and fan respond correctly.

Signs You Need a Replacement

Outdoor coil ices over and the unit never clears it
Unit defrosts constantly or at wrong intervals
No auxiliary/emergency heat during defrost
Reversing valve or outdoor fan fails to switch on the board's command

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 YG...

$188.50

Frequently Asked Questions

Does this Control Board fit my ICP YG030G — 34332101 Heat Pump Board | Ships Today?

Yes. This is the factory-specified OEM control board for the ICP YG030G — 34332101 Heat Pump 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 YG030G — 34332101 Heat Pump 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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