ICP Defrost Control Board for YE024G — Heat Pump | Ships Today
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Overview
This OEM defrost control board (part #34332101) is the brain of the defrost cycle on your ICP YE024G heat pump. It monitors coil temperature and run time, then commands the reversing valve and outdoor fan to clear frost from the outdoor coil during heating. A failed board is one of the most common causes of poor heat-pump heating performance: the outdoor coil ices over, the unit short-cycles, the reversing valve won't switch, or the system gets stuck in (or never enters) defrost. Boards fail from power surges, moisture intrusion, corroded relays, and burnt traces.
Specifications
| Spec | Value |
|---|---|
| Part Number | 34332101 |
| Type | Defrost Control Board |
| Brand | ICP / Heil / Tempstar |
| Control Voltage | 24V |
| Function | Defrost timing, reversing valve, fan control |
| Fitment | OEM |
Compatibility
Direct-fit replacement for the ICP YE024G heat pump and other ICP-family outdoor units (Heil, Tempstar, Comfortmaker) using the 34332101 defrost board. Match the board's part number and connector layout to your existing board before ordering.
Installation Guide
- Safety First — Disconnect power at the disconnect and breaker; verify zero voltage with a multimeter.
- Access — Remove the outdoor unit's control-box cover.
- Document — Photograph every wire harness and terminal connection before unplugging.
- Remove — Unplug the connectors and unscrew the board from its standoffs.
- Install — Mount the new board and reconnect each harness exactly per your photos.
- Test — Restore power, run a heating cycle, and confirm proper defrost initiation and termination.
Signs You Need a Replacement
- Outdoor coil ices up and never defrosts
- Reversing valve won't switch between heat and cool
- System short-cycles or stays stuck in defrost
- Burnt smell, scorched traces, or corroded relays 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