What are the specs for this Control Board?

The correct replacement for ICP model YJ024G — Heat Pump | 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 YJ024G — Heat Pump | Ships Today.

ICP

ICP Defrost Control Board for YJ024G — Heat Pump | Ships Today

Name: ICP Defrost Control Board for YJ024G — Heat Pump | Ships Today
Brand: ICP
SKU: 34332101
Price: 219.70 USD
Availability: InStock

SKU: 34332101 Brand: ICP

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Overview

This genuine OEM defrost control board (part number 34332101) manages the defrost cycle on ICP, Tempstar, and Heil YJ024G heat pumps. The board monitors coil temperature and run time, then commands the reversing valve and shuts off the outdoor fan to melt frost off the outdoor coil during cold-weather heating operation. It also coordinates the contactor and auxiliary heat staging. When this board fails, the heat pump may ice over completely, run defrost constantly, skip defrost entirely, or fail to energize the compressor. Typical symptoms include a heavily iced outdoor coil, no outdoor fan operation, the unit stuck in defrost (steam and warm-then-cold cycling), and no 24V output to the contactor. Because it carries control signals and relay loads, the board can fail from power surges, moisture intrusion, or burnt relay contacts.

Specifications

Spec	Value
Part Number	34332101
Type	Defrost Control Board
Brand	ICP / Tempstar / Heil
Control Voltage	24V AC
Application	Heat Pump Defrost Control
Fit	OEM Replacement

Compatibility

Direct OEM fit for the ICP/Tempstar/Heil YJ024G heat pump and shared-platform outdoor units using this defrost board. Match the part number and connector layout to your existing board before ordering.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and verify zero voltage with a multimeter.
Access — Remove the condensing unit electrical access panel.
Document — Photograph every wire, plug, and the defrost sensor connection before disconnecting.
Remove — Unplug the harnesses, release the board standoffs/screws, and lift out the old board.
Install — Mount the new board on the standoffs and reconnect each harness per your photo, including the defrost thermostat/sensor.
Test — Restore power, run a heat call, and verify normal operation and a forced defrost if your board supports a test pin.

Signs You Need a Replacement

Outdoor coil ices over and never defrosts
Unit stuck running defrost repeatedly
Outdoor fan won't run during heating
No 24V output to the contactor or reversing valve

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 YJ...

$219.70

Frequently Asked Questions

Does this Control Board fit my ICP YJ024G — Heat Pump | Ships Today?

Yes. This is the factory-specified OEM control board for the ICP YJ024G — Heat Pump | 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 YJ024G — Heat Pump | 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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