ICP Control Board Kit for RHS243H0EA0AAAA Heat Pump | Ships Today
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Overview
OEM control board kit (P/N 1183618) for the ICP / Heil / Tempstar RHS243H0EA0AAAA heat pump. The control board is the brain of the outdoor unit - it manages the defrost cycle, sequences the compressor and reversing valve, energizes the contactor and fan, and protects the system through anti-short-cycle and lockout timing. A failed board commonly shows up as no-heat in heat-pump mode, an outdoor unit that ices over and never defrosts, or a condenser that simply won't start despite a good thermostat call. This kit ships with the mounting and connector hardware needed for a clean swap.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1183618 (KIT CONTROL BOARD) |
| Type | Defrost / Sequencing Control Board Kit |
| Brand | ICP / Heil / Tempstar / Comfortmaker |
| Control Voltage | 24 VAC |
| Functions | Defrost, reversing valve & contactor control, anti-short-cycle |
| Application | Heat Pump Outdoor Unit |
Compatibility
Built for the ICP-family RHS243H0EA0AAAA heat pump and the matching Heil, Tempstar, and Comfortmaker outdoor units that specify kit 1183618. Verify the part number printed on your existing board before ordering, as defrost boards vary by series.
Installation Guide
- Safety First - Disconnect power at the disconnect and breaker, then confirm zero voltage with a multimeter.
- Access - Remove the condenser control-panel cover to expose the board.
- Document - Photograph every harness and the defrost sensor leads before unplugging.
- Remove - Unplug each connector, release the board standoffs, and lift out the old board.
- Install - Snap the new board onto the standoffs, reseat every connector per your photo, and set any jumper or defrost-time pins to match the original.
- Test - Restore power, run a heating cycle, and force or observe a defrost to confirm proper sequencing.
Signs You Need a Replacement
- Outdoor coil icing over with no defrost cycle
- No-heat in heat-pump mode despite a valid thermostat call
- Contactor or reversing valve that never energizes
- Visible burns, swollen relays, or corrosion 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