ICP Defrost Control Board for YG030GC9 — Heat Pump | Ships Today
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Overview
This OEM defrost control board (part number 1069364) is the brain of the defrost cycle on your ICP / Tempstar / Heil YG030GC9 heat pump. In heating mode, frost can build on the outdoor coil; the defrost board monitors coil temperature and run time, then commands a reversing-valve switch and shuts the outdoor fan to melt the ice before returning to normal heating. It also coordinates compressor timing and anti-short-cycle protection. Symptoms of a failed board include the outdoor coil icing over solid, the unit never entering or never exiting defrost, no heat-pump heating, or the system running constant emergency/auxiliary heat.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1069364 |
| Type | Defrost Control Board |
| Brand | ICP / Tempstar / Heil |
| Control Voltage | 24V |
| Function | Defrost timing, reversing valve & fan control, compressor protection |
| Application | Heat Pump (outdoor unit) |
Compatibility
Direct OEM replacement for the defrost control board in the ICP Tempstar Heil YG030GC9 heat pump. This board is shared across a range of ICP-family outdoor heat pump units. Verify the board's connector layout and part number against your existing board before installing.
Installation Guide
- Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter.
- Access — Remove the outdoor unit's electrical service panel.
- Document — Photograph every wire and connector on the existing board before removing anything.
- Remove — Unplug the harness connectors and unscrew or unclip the old board from its standoffs.
- Install — Mount the new board, then reconnect each connector and wire exactly per your photo.
- Test — Restore power, run a heating call, and confirm normal operation and proper defrost initiation/termination.
Signs You Need a Replacement
- Outdoor coil freezes over and never clears
- System stuck in defrost or never enters defrost
- No heat-pump heating; constant auxiliary/emergency heat
- Erratic compressor or outdoor-fan behavior in heating mode
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