What are the specs for this Control Board?

The correct replacement for ICP model YJ036G2 — Heat Pump 24V | 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 YJ036G2 — Heat Pump 24V | Ships Today.

ICP

ICP Defrost Control Board for YJ036G2 — Heat Pump 24V | Ships Today

Name: ICP Defrost Control Board for YJ036G2 — Heat Pump 24V | Ships Today
Brand: ICP
SKU: 34332101
Price: 188.44 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 for the ICP/Tempstar/Heil YJ036G2 heat pump. In heating mode, frost accumulates on the outdoor coil and must be cleared periodically. The defrost board watches coil temperature and run time, then commands the reversing valve, brings on auxiliary heat, and shuts off the outdoor fan to melt the frost before resuming normal heating. When this board fails, the outdoor coil can freeze solid, the unit may get stuck in defrost, short-cycle, or stop heating altogether. Because the board runs the 24V low-voltage logic for the entire outdoor unit, a failure often shows up as several unrelated-looking symptoms at once.

Specifications

Spec	Value
Part Number	34332101
Type	Defrost Control Board
Brand	ICP / Tempstar / Heil
Control Voltage	24V
Application	Heat Pump Outdoor Unit
Fits Model	YJ036G2

Compatibility

Direct-fit replacement defrost control board for the ICP/Tempstar/Heil YJ036G2 heat pump and other ICP family outdoor units that originally shipped with part 34332101. Verify the original board's part number and terminal layout before installing.

Installation Guide

Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter.
Access — Remove the electrical access panel on the outdoor unit.
Document — Photograph every wire and connector on the existing board before removing anything.
Remove — Unplug the connectors and low-voltage leads, then unclip or unscrew the old board from its standoffs.
Install — Mount the new board on the standoffs and reconnect each wire and connector exactly per your photo.
Test — Restore power, initiate a heat call, and confirm normal operation and a proper defrost cycle.

Signs You Need a Replacement

Outdoor coil ices over and the unit never defrosts in heating mode.
Unit gets stuck in defrost or short-cycles between modes.
No heating output even though the compressor and fan run.
Reversing valve or auxiliary heat fails to activate on schedule.

Shipping & Returns

Ships same day on orders placed 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...

$188.44

Frequently Asked Questions

Does this Control Board fit my ICP YJ036G2 — Heat Pump 24V | Ships Today?

Yes. This is the factory-specified OEM control board for the ICP YJ036G2 — Heat Pump 24V | 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 YJ036G2 — Heat Pump 24V | 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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