What are the specs for this Control Board?

The correct replacement for ICP model RHS240L0BA0AAAA — OEM 1183618 Replacement | 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 RHS240L0BA0AAAA — OEM 1183618 Replacement | Ships Today.

ICP

ICP Control Board Kit for RHS240L0BA0AAAA — OEM 1183618 Replacement | Ships Today

Name: ICP Control Board Kit for RHS240L0BA0AAAA — OEM 1183618 Replacement | Ships Today
Brand: ICP
SKU: 1183618
Price: 245.70 USD
Availability: InStock

SKU: 1183618 Brand: ICP

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Overview

This is a genuine OEM control board kit (part number 1183618) for the ICP/Tempstar/Heil RHS240L0BA0AAAA heat pump. The control board is the brain of the unit — it manages the defrost cycle, sequences the compressor and reversing valve, monitors safety switches, and coordinates the indoor and outdoor sections. When it fails, the system may stop heating or cooling entirely, get stuck in defrost, short-cycle, or throw error codes at the thermostat. Because this is a complete factory kit, it ships with the correct board revision and the mounting hardware needed for a direct, plug-in replacement.

Specifications

Spec	Value
Part Number	1183618
Type	Control Board Kit (defrost/sequence control)
Brand	ICP / Tempstar / Heil
Control Voltage	24V
Fits Model	RHS240L0BA0AAAA
Fitment	OEM Direct Replacement

Compatibility

Designed as a direct-fit replacement for the ICP/Tempstar/Heil RHS240L0BA0AAAA heat pump. ICP manufactures equipment sold under multiple labels — Tempstar, Heil, Comfortmaker, Arcoaire and others — so this board also services equivalent units built on the same platform. Always match the OEM part number 1183618 to confirm fitment.

Installation Guide

Safety First — Disconnect power at the breaker and verify zero voltage with a multimeter before touching any wiring.
Access — Remove the control-section service panel.
Document — Photograph every wire and terminal on the existing board before disconnecting anything.
Remove — Label and disconnect each harness, then unclip or unscrew the failed board from its standoffs.
Install — Mount the new board on the standoffs and reconnect each harness exactly as photographed.
Test — Restore power, run a heating and cooling call, and confirm proper defrost and reversing-valve operation.

Signs You Need a Replacement

Unit will not start in heat or cool despite a good thermostat call
System stuck in defrost or never enters defrost in cold weather
Compressor or reversing valve short-cycles or chatters
Visible burn marks, corrosion, or a blown trace 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 RHS240...

$245.70

Frequently Asked Questions

Does this Control Board fit my ICP RHS240L0BA0AAAA — OEM 1183618 Replacement | Ships Today?

Yes. This is the factory-specified OEM control board for the ICP RHS240L0BA0AAAA — OEM 1183618 Replacement | 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 RHS240L0BA0AAAA — OEM 1183618 Replacement | 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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