ICP Defrost Control Board for YG042GA1 — OEM Heat Pump Part 1069364 | Ships Today
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Overview
This genuine OEM defrost control board (part number 1069364) regulates the defrost cycle on your ICP / Heil / Tempstar YG042GA1 heat pump. The board monitors coil temperature and run time, then commands the reversing valve and shuts down the outdoor fan to melt frost off the outdoor coil during cold-weather operation. When this board fails, the system either stops defrosting (ice builds on the coil and heating capacity collapses) or defrosts constantly (poor efficiency and short cycling). It operates on a standard 24V control signal and includes the timing and temperature logic needed for reliable heat-pump heating.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1069364 |
| Type | Defrost Control Board |
| Brand | ICP / Heil / Tempstar |
| Control Voltage | 24V |
| Application | Heat Pump Defrost |
| Fits Model | YG042GA1 |
Compatibility
Engineered as a direct-fit replacement for the ICP, Heil, Comfortmaker, and Tempstar YG042GA1 heat pump. Always confirm the existing board part number and terminal layout against 1069364 before installing.
Installation Guide
- Safety First — Disconnect power at the outdoor disconnect and verify zero voltage with a multimeter.
- Access — Remove the outdoor unit's electrical access panel.
- Document — Photograph every wire and terminal connection before disconnecting anything.
- Remove — Label and unplug the low-voltage and sensor leads, then remove the mounting screws and lift out the old defrost board.
- Install — Mount the new 1069364 board, reconnect each wire exactly per your photo, and seat the defrost thermostat/sensor.
- Test — Restore power and verify a normal heating call and a forced defrost cycle complete correctly.
Signs You Need a Replacement
- Heavy ice or frost building on the outdoor coil during heating
- Heat pump never enters or never exits defrost mode
- Constant short cycling between heat and defrost
- No 24V output to the reversing valve or fan during defrost
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