ICP Defrost Control Board for YG024GA2 — Heat Pump | Ships Today
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Overview
This genuine ICP defrost control board (OEM part 1069364) is the brain of your YG024GA2 heat pump's defrost system. It monitors coil temperature and run time, then commands a defrost cycle to clear frost and ice from the outdoor coil during heating operation, switching the reversing valve and pausing the outdoor fan as needed. A failed defrost board leads to a coil that ices over and chokes off airflow, sharply reducing heating capacity. Common failure symptoms include a heat pump that frosts up and never defrosts, a unit that defrosts constantly, an outdoor fan that won't restart, or no 24V output to the reversing valve and contactor. Because the board orchestrates the entire heating sequence, replacing a faulty one restores proper defrost timing and protects the compressor.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1069364 |
| Type | Defrost Control Board |
| Brand | ICP (Tempstar / Heil) |
| Control Voltage | 24V AC |
| Function | Heat-pump defrost timing & sequencing |
| Fitment | OEM Replacement |
Compatibility
Exact-fit OEM replacement for the ICP/Tempstar/Heil YG024GA2 heat pump and other ICP-family units that use this defrost board. Match the board's part number and connector layout to your existing board before installing.
Installation Guide
- Safety First — Disconnect power at the breaker and outdoor disconnect; verify zero voltage with a multimeter.
- Access — Remove the control/access panel on the outdoor unit.
- Document — Photograph every harness and sensor connection on the board before unplugging anything.
- Remove — Unplug all connectors and the defrost/coil sensor, then unscrew or unclip the board from its standoffs.
- Install — Mount the new board on the standoffs and reconnect each harness and the sensor per your photo.
- Test — Restore power, initiate a heating call, and confirm normal operation and a proper defrost cycle.
Signs You Need a Replacement
- Outdoor coil ices over and the unit never enters defrost.
- Heat pump defrosts far too often or stays in defrost.
- Outdoor fan or reversing valve doesn't respond on a heating call.
- No 24V output from the board to downstream components.
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