ICP Defrost Control Board for YG030GA1 — 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 YG030GA1 heat pump. The defrost board is the brain of the heat pump's defrost cycle: it monitors the defrost thermostat/sensor and accumulated run time, then commands the reversing valve, outdoor fan, and auxiliary heat to clear frost from the outdoor coil during cold-weather operation. A failed defrost board causes a heavily iced outdoor coil, poor heating performance, short-cycling, or a heat pump that never initiates (or never terminates) defrost. Because it coordinates multiple components, a faulty board often presents as several unrelated symptoms at once.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1069364 |
| Type | Defrost Control Board |
| Brand | ICP / Tempstar / Heil / Comfortmaker |
| Application | Heat Pump Defrost Control |
| Controls | Reversing valve, outdoor fan, defrost timing/sensor |
| Fit | OEM Replacement |
Compatibility
Engineered as a direct OEM replacement for the ICP/Tempstar/Heil YG030GA1 heat pump and other ICP-family units that use board 1069364. Confirm the part number printed on your existing board and match the connector/terminal layout before installing.
Installation Guide
- Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage at the board terminals with a multimeter.
- Access — Remove the condenser control-box service panel to expose the defrost board.
- Document — Photograph all connectors, plugs, and individual wire positions before removing anything.
- Remove — Unplug the harnesses and spade connectors, release the board's standoffs/screws, and lift out the old board.
- Install — Seat the new board on its standoffs, then reconnect every harness and lead exactly per your photos; set any defrost-timing jumper to match the original.
- Test — Restore power and run a heating call; verify normal operation and, where possible, a forced defrost cycle.
Signs You Need a Replacement
- Outdoor coil ices over and never goes into defrost
- Heat pump stuck in defrost or short-cycling the reversing valve
- Outdoor fan or reversing valve not switching on command
- No control output / board shows scorched traces or relays
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