What are the specs for this Control Board?

The correct replacement for ICP model RHH036S0BA0AAAA — Heat Pump Defrost 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 RHH036S0BA0AAAA — Heat Pump Defrost Board | Ships Today.

ICP

ICP Control Board Kit for RHH036S0BA0AAAA — Heat Pump Defrost Board | Ships Today

Name: ICP Control Board Kit for RHH036S0BA0AAAA — Heat Pump Defrost Board | Ships Today
Brand: ICP
SKU: 1183618
Price: 214.50 USD
Availability: InStock

SKU: 1183618 Brand: ICP

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Overview

This genuine OEM control board kit (part number 1183618) is the electronic brain of the ICP/Tempstar/Heil RHH036S0BA0AAAA heat pump. The board manages the defrost cycle, compressor and fan sequencing, reversing-valve switching, and the 24-volt safety circuit. It reads the defrost thermostat and timer logic to decide when to reverse the system and melt frost off the outdoor coil, then returns the unit to normal operation. Because every cooling and heating call routes through this board, a failure usually shows up as a unit that will not run at all, a heat pump that ices over and never defrosts, or erratic compressor and fan behavior. Replacing the board with the correct OEM kit restores proper sequencing and protects the compressor from short-cycling.

Specifications

Spec	Value
Part Number	1183618
Type	Defrost / Control Board Kit
Brand	ICP / Tempstar / Heil
Control Voltage	24V
Function	Defrost, sequencing, reversing-valve control
Fits Model	RHH036S0BA0AAAA

Compatibility

Designed for the ICP/Tempstar/Heil RHH036S0BA0AAAA heat pump and the related ICP-family outdoor units that share this defrost control kit. Confirm the existing board's part number and connector layout before ordering, as control kits are model-specific.

Installation Guide

Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter.
Access — Remove the outdoor unit's electrical service panel to expose the control board.
Document — Photograph every wire harness, plug, and terminal position before disconnecting.
Remove — Unplug the connectors, release the board's mounting standoffs or screws, and lift it out.
Install — Seat the new board on the standoffs, reconnect each harness exactly per your photos, and verify the defrost sensor and reversing-valve leads are landed correctly.
Test — Restore power, run a cooling and a heating call, and confirm proper compressor, fan, and defrost operation.

Signs You Need a Replacement

Heat pump ices over and never initiates a defrost cycle.
Outdoor unit is completely dead with 24V present at the board.
Compressor or fan short-cycles or runs erratically.
Visible burnt traces, scorched relays, or a blown fuse on the board.

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 Control Board Kit for RHH036...

$214.50

Frequently Asked Questions

Does this Control Board fit my ICP RHH036S0BA0AAAA — Heat Pump Defrost Board | Ships Today?

Yes. This is the factory-specified OEM control board for the ICP RHH036S0BA0AAAA — Heat Pump Defrost 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 RHH036S0BA0AAAA — Heat Pump Defrost 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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