ICP Defrost Control Board for YJ024GA1 — Heat Pump OEM | 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 YJ024GA1 heat pump. In heating mode, frost and ice build up on the outdoor coil; the defrost board monitors the coil temperature sensor and accumulated run time, then periodically reverses the system into a short defrost cycle to melt that ice and protect efficiency. It coordinates the reversing valve, compressor, outdoor fan, and auxiliary heat, and manages the 24V control timing for the whole sequence. When the board fails, the outdoor coil ices over and stays frozen, heating output drops, the unit may short cycle, or defrost may run constantly. A failed board is a common cause of poor heat-pump performance in cold weather.
Specifications
| Spec | Value |
|---|---|
| OEM Part Number | 1069364 |
| Type | Defrost Control Board |
| Brand | ICP (Tempstar / Heil) |
| Control Voltage | 24V |
| Application | Heat Pump Outdoor Unit |
| Fits Model | YJ024GA1 |
Compatibility
Designed as a direct OEM replacement for the ICP / Tempstar / Heil YJ024GA1 heat pump. The same defrost board services many comparable ICP-family and Comfortmaker heat-pump condensing units of the same generation. Confirm the original part number 1069364 and the wiring terminal layout against your existing board before installing.
Installation Guide
- Safety First — Disconnect power at the outdoor disconnect and breaker, then verify zero voltage at the board with a multimeter.
- Access — Remove the condensing unit service panel to reach the control box.
- Document — Photograph every wire and connector on the board before disconnecting, including the coil sensor and reversing valve leads.
- Remove — Unplug the harnesses, release the board standoffs or screws, and lift the old board out.
- Install — Mount the new board, reconnect each harness and sensor exactly as photographed, and set any defrost-time jumper to match the original.
- Test — Restore power and run a heating cycle; confirm normal operation and, if needed, initiate a forced defrost to verify the cycle completes.
Signs You Need a Replacement
- Outdoor coil ices over and never clears in heating mode.
- Heat pump runs but delivers weak or no heat in cold weather.
- Unit short cycles or gets stuck in continuous defrost.
- Reversing valve or auxiliary heat fails to engage on schedule.
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