What are the specs for this Control Board?

The correct replacement for ICP model RHS150S0CA0AAAA — 24V Heat Pump Defrost Control | 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 RHS150S0CA0AAAA — 24V Heat Pump Defrost Control | Ships Today.

ICP

ICP Control Board Kit for RHS150S0CA0AAAA — 24V Heat Pump Defrost Control | Ships Today

Name: ICP Control Board Kit for RHS150S0CA0AAAA — 24V Heat Pump Defrost Control | Ships Today
Brand: ICP
SKU: 1183618
Price: 188.50 USD
Availability: InStock

SKU: 1183618 Brand: ICP

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Overview

This is a genuine ICP control board kit (OEM part 1183618) for the RHS150S0CA0AAAA heat pump condensing unit. The control board manages the defrost cycle, reversing valve timing, compressor staging, and 24V communication between the thermostat, contactor, and indoor air handler. When the board fails, the system can lose heating or cooling, get stuck in or out of defrost, short-cycle the compressor, or stop responding to thermostat calls. Typical symptoms are no outdoor unit operation, a coil that ices and never clears, or the fan and compressor running at the wrong times. This factory kit includes the board and the hardware needed for a direct replacement.

Specifications

Spec	Value
Part Number	1183618
Type	Integrated Defrost Control Board Kit
Brand	ICP (Tempstar / Heil / Comfortmaker)
Control Voltage	24V
Application	Heat Pump Condensing Unit
Fits Model	RHS150S0CA0AAAA

Compatibility

Designed as the OEM replacement for the ICP / Tempstar / Heil / Comfortmaker RHS150S0CA0AAAA heat pump. Confirm the part number on your existing board matches 1183618 before installing, as control boards vary by model revision.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and breaker, then verify zero voltage with a multimeter.
Access — Remove the control panel service cover from the condensing unit.
Document — Photograph every wire and terminal position before disconnecting anything.
Remove — Unplug the harness connectors, release the board standoffs or screws, and lift out the old board.
Install — Mount the new board on the same standoffs and reconnect each wire to match your photo.
Test — Restore power and verify a heating call, a cooling call, and a defrost cycle all operate correctly.

Signs You Need a Replacement

Outdoor unit does not run on a thermostat call
Coil ices over and the defrost cycle never initiates or never ends
Compressor short-cycles or the reversing valve sticks between modes
Visible burn marks, corrosion, or a cracked relay 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 RHS150...

$188.50

Frequently Asked Questions

Does this Control Board fit my ICP RHS150S0CA0AAAA — 24V Heat Pump Defrost Control | Ships Today?

Yes. This is the factory-specified OEM control board for the ICP RHS150S0CA0AAAA — 24V Heat Pump Defrost Control | 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 RHS150S0CA0AAAA — 24V Heat Pump Defrost Control | 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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