ICP Control Board Kit for RHH102S0AA0AAAA — OEM Defrost Board | Ships Today
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Overview
This OEM control board kit (part number 1183618) is the electronic brain of the ICP RHH102S0AA0AAAA heat pump. The board manages compressor sequencing, the defrost cycle, fan timing, and the safety interlocks that protect the unit. It monitors inputs from the thermostat, defrost sensor, and pressure switches, then energizes the contactor, reversing valve, and outdoor fan at the correct times. Because it is exposed to heat, vibration, and voltage surges, the control board is a frequent failure point — symptoms include a unit that never enters or never exits defrost, a compressor that will not start, or erratic operation. This kit ships as a complete assembly so you replace the entire board rather than chasing individual burnt traces or relays.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1183618 |
| Type | Control / Defrost Board Kit |
| Brand | ICP |
| Configuration | Complete kit assembly |
| Fits Model | RHH102S0AA0AAAA |
Compatibility
Direct OEM replacement for the ICP / Tempstar / Heil RHH102S0AA0AAAA heat pump. Verify the part number against your existing board, as control boards are model-specific and not interchangeable across all ICP units.
Installation Guide
- Safety First — Disconnect power at the breaker and disconnect, then verify zero voltage with a multimeter.
- Access — Remove the control panel cover on the condensing unit.
- Document — Photograph every connector and wire on the board before removing anything.
- Remove — Unplug each harness, release the standoffs or screws, and lift out the old board.
- Install — Mount the new board on the standoffs and reconnect each harness to the matching terminal per your photo.
- Test — Restore power, run a heating and cooling cycle, and confirm proper defrost and fan operation.
Signs You Need a Replacement
- Unit will not start in heating or cooling despite a valid thermostat call.
- Outdoor coil ices over because the defrost cycle never initiates.
- Visible scorch marks, burnt relays, or cracked traces on the board.
- Erratic compressor or fan behavior and intermittent lockouts.
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