ICP Control Board Kit for RHH102L0BA0AAAA — OEM Part 1183618 | Ships Today
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Overview
The ICP OEM Control Board Kit (part number 1183618) is the main control module for your RHH102L0BA0AAAA heat pump. This board governs defrost timing, compressor and fan staging, reversing-valve energizing, and safety lockouts for the outdoor unit. A failed control board produces wide-ranging symptoms — the unit may go completely dead, get stuck in defrost, short-cycle, or ignore thermostat calls — which makes it easy to mistake for a motor or compressor fault. Installing the correct genuine OEM board restores coordinated, reliable operation and safeguards the costlier components it controls.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1183618 |
| Description | Kit, Control Board |
| Type | Heat Pump Defrost Control Board |
| Brand | ICP (Tempstar / Heil) |
| Control Voltage | 24V |
| Fit | OEM Genuine Replacement |
Compatibility
This control board kit is the genuine OEM replacement for the ICP / Tempstar / Heil model RHH102L0BA0AAAA. ICP shares components across the Heil, Tempstar, Comfortmaker, and Arcoaire families, so this kit fits a range of matching outdoor units that use part 1183618. Always confirm the part number on your existing board before ordering.
Installation Guide
- Safety First — Disconnect power at the outdoor disconnect and breaker, then verify zero voltage with a multimeter.
- Access — Remove the outdoor unit's control-box service panel.
- Document — Photograph every wire and connector on the existing board before disconnecting anything.
- Remove — Label and unplug each harness, then unscrew the failed board from its standoffs.
- Install — Mount the new board on the standoffs and reconnect each harness exactly per your photos.
- Test — Restore power and verify normal cooling, heating, and a proper defrost cycle.
Signs You Need a Replacement
- Outdoor unit is completely unresponsive to thermostat calls
- Heat pump gets stuck in defrost or never defrosts in cold weather
- Compressor or fan short-cycles or fails to stage correctly
- Visible burn marks, swollen relays, or scorched traces 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