What are the specs for this Control Board?

The correct replacement for ICP model RHS240S0CA0AAAA — 24V 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 RHS240S0CA0AAAA — 24V Heat Pump Defrost Board | Ships Today.

ICP

ICP Control Board Kit for RHS240S0CA0AAAA — 24V Heat Pump Defrost Board | Ships Today

Name: ICP Control Board Kit for RHS240S0CA0AAAA — 24V Heat Pump Defrost Board | Ships Today
Brand: ICP
SKU: 1183618
Price: 219.64 USD
Availability: InStock

SKU: 1183618 Brand: ICP

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Overview

This OEM control board kit (part number 1183618) is the electronic brain of your ICP/Heil/Tempstar RHS240S0CA0AAAA heat pump. It manages the defrost cycle, reversing valve switching, compressor timing, and safety lockouts based on inputs from the thermostat and outdoor temperature and coil sensors. On a heat pump, this board is what decides when to reverse the refrigerant flow to melt frost off the outdoor coil and when to bring the unit back into heating or cooling. When it fails, you typically lose proper defrost — leading to an iced-over outdoor coil — or lose compressor and reversing valve control entirely. The kit ships with the board and the mounting hardware needed for a clean OEM replacement.

Specifications

Spec	Value
Part Number	1183618
Type	Control / Defrost Board Kit
Brand	ICP (Heil / Tempstar / Comfortmaker)
Control Voltage	24V
Application	Heat Pump Defrost & Compressor Control
Fit	OEM Replacement Kit

Compatibility

Designed specifically for the ICP/Heil/Tempstar RHS240S0CA0AAAA heat pump and shared across compatible RHS-series outdoor units. Confirm the board part number stamped on your existing board matches 1183618 before installing.

Installation Guide

Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter.
Access — Remove the condenser service panel to reach the control box.
Document — Photograph every wire and connector on the existing board, including sensor leads and DIP switch positions.
Remove — Disconnect all connectors and unscrew or unclip the old board from its standoffs.
Install — Mount the new board, set any DIP switches to match the originals, and reconnect each wire per your photo.
Test — Restore power, run a heating and cooling call, and verify proper compressor, reversing valve, and defrost operation.

Signs You Need a Replacement

Outdoor coil ices over because the defrost cycle never initiates
Compressor or reversing valve won't energize on a call
Visible scorch marks, burned traces, or a blown relay on the board
Erratic short-cycling or unit ignoring thermostat commands

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 RHS240...

$219.64

Frequently Asked Questions

Does this Control Board fit my ICP RHS240S0CA0AAAA — 24V Heat Pump Defrost Board | Ships Today?

Yes. This is the factory-specified OEM control board for the ICP RHS240S0CA0AAAA — 24V 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 RHS240S0CA0AAAA — 24V 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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