ICP Defrost Control Board for YJ036GA1 — Heat Pump 24V | Ships Today
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Overview
This genuine OEM defrost control board (part number 1069364) is the brain of the defrost cycle for the ICP/Tempstar/Heil YJ036GA1 heat pump. During heating mode, frost builds up on the outdoor coil and must be periodically melted off. The defrost board monitors coil temperature and elapsed run time, then commands the reversing valve, energizes auxiliary heat, and stops the outdoor fan to run a defrost cycle before returning the system to normal heating. When this board fails, the unit can ice over solid in winter, fail to come out of defrost, short-cycle, or lose heating entirely. Because it controls the 24V low-voltage logic for the whole outdoor unit, a failed board often presents as multiple seemingly unrelated symptoms.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1069364 |
| Type | Defrost Control Board |
| Brand | ICP / Tempstar / Heil |
| Control Voltage | 24V |
| Application | Heat Pump Outdoor Unit |
| Fits Model | YJ036GA1 |
Compatibility
Direct-fit replacement defrost control board for the ICP/Tempstar/Heil YJ036GA1 heat pump and other ICP family outdoor units that originally shipped with part 1069364. Verify the original board's part number and terminal layout before installing.
Installation Guide
- Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter.
- Access — Remove the electrical access panel on the outdoor unit.
- Document — Photograph every wire and connector on the existing board before removing anything.
- Remove — Unplug the connectors and low-voltage leads, then unclip or unscrew the old board from its standoffs.
- Install — Mount the new board on the standoffs and reconnect each wire and connector exactly per your photo.
- Test — Restore power, initiate a heat call, and confirm normal operation and a proper defrost cycle.
Signs You Need a Replacement
- Outdoor coil ices over and the unit never defrosts in heating mode.
- Unit gets stuck in defrost or short-cycles between modes.
- No heating output even though the compressor and fan run.
- Reversing valve or auxiliary heat fails to activate on schedule.
Shipping & Returns
Ships same day on orders placed 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