ICP Defrost Control Board for YG036GB1 — Heat Pump Board | Ships Today
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Overview
This OEM defrost control board (part #1069364) manages the defrost cycle on your ICP/Tempstar/Heil YG036GB1 heat pump. It monitors the outdoor coil temperature and accumulated run time, then initiates and terminates defrost to clear frost and ice from the outdoor coil during heating operation. The board also coordinates the reversing valve, compressor, and outdoor fan during defrost. A failed defrost board leads to a frozen-over outdoor coil, poor heating performance, or a unit that defrosts constantly or never at all. It operates on the standard 24V control circuit.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1069364 |
| Type | Defrost Control Board |
| Brand | ICP / Tempstar / Heil |
| Control Voltage | 24V |
| Application | Heat Pump Defrost |
Compatibility
Direct OEM fit for the ICP Tempstar Heil YG036GB1 heat pump. Also used across ICP-family heat pumps sharing the same defrost board. Confirm the part number and connector layout against your existing board before installing.
Installation Guide
- Safety First — Disconnect power at the disconnect and breaker; verify zero voltage with a multimeter.
- Access — Remove the control panel cover to expose the board.
- Document — Photograph every wire harness and plug location before disconnecting.
- Remove — Unplug the harnesses, release the standoffs/screws, and lift the old board out.
- Install — Seat the new board on the standoffs and reconnect each harness per your photo.
- Test — Restore power, verify defrost timing/jumper settings, and confirm normal heating operation.
Signs You Need a Replacement
- Outdoor coil ices over and won't defrost
- Unit goes into defrost too often or runs defrost continuously
- No outputs to compressor, fan, or reversing valve
- Visible burnt traces, 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