ICP Control Board Kit for RHH072L0BA0AAAA — Defrost Board | Ships Today
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Overview
This genuine OEM control board kit (P/N 1183618, KIT CONTROL BOARD) is the electronic brain of the ICP / Heil / Tempstar RHH072L0BA0AAAA heat pump. It manages the defrost cycle, compressor and reversing-valve timing, anti-short-cycle protection, and the 24V control signals that coordinate the indoor and outdoor equipment. As a complete kit it ships with the board and the mounting/connector hardware needed for a clean swap. A failed control board is one of the most common causes of erratic heat pump behavior: the unit may stop defrosting and ice over, fail to switch between heating and cooling, short-cycle the compressor, or go completely dead with no response to a thermostat call. Burnt traces, blown relays on the board, scorched connectors, and no LED status activity all point to board failure. This direct-replacement kit restores correct sequencing and protection logic to keep the system running efficiently through every season.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1183618 |
| Type | Control / Defrost Board Kit |
| Brand | ICP (Heil / Tempstar / Comfortmaker) |
| Control Voltage | 24 VAC |
| Includes | Board plus mounting and connector hardware |
| Fitment | OEM direct replacement |
Compatibility
Engineered for the ICP / Heil / Tempstar RHH072L0BA0AAAA heat pump and other RHH072-series outdoor units calling out control board kit P/N 1183618. Confirm the OEM part number printed on the existing board before ordering, as board revisions vary by series.
Installation Guide
- Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage at the board with a multimeter.
- Access — Remove the service panel to expose the control box and existing board.
- Document — Photograph every harness plug and terminal position before disconnecting; note any dip-switch or jumper settings.
- Remove — Unplug each connector, release the board standoffs/screws, and lift out the old board.
- Install — Mount the new board on the supplied standoffs, match any dip-switch/jumper settings, and reconnect every harness per your photo.
- Test — Restore power, watch for normal LED status, and run heat, cool, and a forced defrost to confirm correct operation.
Signs You Need a Replacement
- Heat pump ices over and never enters defrost
- No response to thermostat calls / dead control circuit
- Compressor short-cycling or random shutdowns
- Burnt traces, blown on-board relays, or no LED activity
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