ICP Defrost Control Board for YC060H — Heat Pump | Ships Today
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Overview
This OEM defrost control board (ICP part #34332100) is the brain of the heat-pump defrost cycle on your ICP/Tempstar/Heil YC060H. In heating mode, frost accumulates on the outdoor coil; the board monitors coil temperature and run time, then reverses the cycle to melt that ice and restore efficiency. It coordinates the reversing valve, condenser fan, compressor timing, and the auxiliary/emergency heat handoff. A failed board is a frequent cause of an outdoor unit that ices over solid, never defrosts, short-cycles, or stays stuck in defrost. Because the board manages compressor and reversing-valve timing, a faulty unit can also drive high energy bills and premature compressor wear. Installing a genuine OEM replacement restores correct, factory-calibrated defrost logic.
Specifications
| Spec | Value |
|---|---|
| Part Number | 34332100 |
| Type | Defrost Control Board |
| Brand | ICP (Tempstar / Heil) |
| Control Voltage | 24V |
| Function | Heat-Pump Defrost Cycle Management |
| Fitment | OEM Direct Replacement |
Compatibility
A direct OEM fit for the ICP/Tempstar/Heil YC060H heat pump and related outdoor units using this defrost control platform. Match your old board's part number and connector layout before ordering.
Installation Guide
- Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter.
- Access — Remove the outdoor unit's electrical service panel.
- Document — Photograph every wire harness, plug, and defrost-timer jumper position before disconnecting.
- Remove — Unplug connectors, release the mounting standoffs, and lift out the old board.
- Install — Seat the new board, reconnect each harness per your photo, and set the defrost timer jumper to match.
- Test — Restore power and force a defrost cycle to confirm proper operation.
Signs You Need a Replacement
- Outdoor coil ices over and never defrosts in heat mode
- Unit stuck in defrost or short-cycling
- Reversing valve or auxiliary heat not engaging on schedule
- Visible burn marks, scorched traces, or failed 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