What are the specs for this Control Board?

The correct replacement for ICP model RHS183H0BA0AAAA — 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 RHS183H0BA0AAAA — Defrost Control | Ships Today.

ICP

ICP Control Board Kit for RHS183H0BA0AAAA — Defrost Control | Ships Today

Name: ICP Control Board Kit for RHS183H0BA0AAAA — Defrost Control | Ships Today
Brand: ICP
SKU: 1183618
Price: 220.94 USD
Availability: InStock

SKU: 1183618 Brand: ICP

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Overview

This OEM control board kit (part 1183618) is the electronic brain of your ICP Tempstar Heil RHS183H0BA0AAAA heat pump. It manages the defrost cycle, sequences the compressor and reversing valve, monitors temperature and pressure inputs, and coordinates the outdoor fan with the indoor blower. The factory kit ships with the board and the hardware needed for a clean swap. When this board fails, the heat pump may stop defrosting, lock out on a fault, run the wrong mode, or refuse to start at all — symptoms that are easy to misdiagnose as a compressor or sensor problem.

Specifications

Spec	Value
OEM Part Number	1183618
Type	Defrost / Control Board Kit
Brand	ICP / Tempstar / Heil
Control Voltage	24V
Function	Defrost timing, compressor & reversing valve sequencing
Application	Heat Pump Condensing Unit

Compatibility

Designed for the ICP / Tempstar / Heil RHS183H0BA0AAAA heat pump and related RHS-series outdoor units that use the same control platform. Confirm the board's connector layout and part number against your existing board before installing.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and verify zero voltage with a multimeter.
Access — Remove the control panel cover to expose the board.
Document — Photograph every plug, terminal, and jumper position before disconnecting.
Remove — Unplug the connectors, release the standoffs, and lift out the old board.
Install — Seat the new board on the standoffs and reconnect every plug per your photo, matching defrost-timing jumpers.
Test — Restore power and verify normal startup, fan operation, and a forced defrost cycle.

Signs You Need a Replacement

Heat pump no longer defrosts and the outdoor coil ices over.
Unit locks out, displays a fault code, or will not start.
Reversing valve or fan operates erratically or in the wrong mode.
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 RHS183...

$220.94

Frequently Asked Questions

Does this Control Board fit my ICP RHS183H0BA0AAAA — Defrost Control | Ships Today?

Yes. This is the factory-specified OEM control board for the ICP RHS183H0BA0AAAA — 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 RHS183H0BA0AAAA — 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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