ICP Defrost Control Board for YG018GA1 — OEM Heat Pump | Ships Today
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Overview
This is a genuine OEM defrost control board (part number 1069364) for the ICP / Tempstar / Heil YG018GA1 heat pump. The defrost board monitors coil temperature and run time and triggers the defrost cycle that clears frost and ice from the outdoor coil in heating mode. It coordinates the reversing valve, condenser fan, and auxiliary heat during defrost. A failed board leaves the outdoor coil iced over, kills heating capacity, and can cause short-cycling or a complete no-heat condition.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1069364 |
| Type | Defrost control board |
| Brand | ICP (Tempstar / Heil) |
| Function | Defrost cycle timing & control |
| Fitment | OEM direct replacement |
| Application | Heat pump outdoor unit |
Compatibility
Factory-specified defrost board for the ICP YG018GA1 and matching Tempstar and Heil heat pump platforms. Match the board part number and connector layout to your existing unit before installing.
Installation Guide
- Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter.
- Access — Remove the condenser control-panel service cover.
- Document — Photograph every plug and wire on the existing board before disconnecting.
- Remove — Unplug the harness connectors, release the mounting standoffs/screws, and lift out the old board.
- Install — Mount the new board and reconnect each connector to match your photo; set any defrost-timing jumpers to match the originals.
- Test — Restore power and verify normal operation and a proper defrost cycle.
Signs You Need a Replacement
- Outdoor coil ices up and never defrosts in heating mode
- No heat or weak heat output from the heat pump
- Constant or absent defrost cycles, or short-cycling
- Burnt spots, scorched traces, or no power to 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