ICP Defrost Control Board for YF060G — Heat Pump OEM | Ships Today
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
Overview
This is a genuine OEM defrost control board (P/N 34332100) for the ICP / Tempstar / Heil YF060G heat pump. The defrost board governs heat-pump operation: it monitors outdoor coil temperature and ambient conditions, then starts and ends the defrost cycle to clear frost and ice from the outdoor coil during heating. It also coordinates the reversing valve, condenser fan, compressor, and auxiliary heat staging. A failed board lets the outdoor coil ice over and block airflow, cuts heating performance, causes short-cycling, or prevents the system from switching between heating and cooling. Common symptoms include a frosted outdoor unit that never defrosts, a system stuck in defrost, no compressor operation, or visibly burnt traces, scorched relays, and a blown onboard fuse.
Specifications
| Spec | Value |
|---|---|
| Part Number | 34332100 |
| Type | Defrost Control Board |
| Brand | ICP (Tempstar / Heil) |
| Control Voltage | 24V |
| Function | Defrost timing, reversing valve & fan/compressor control |
| Fit | OEM Direct Replacement |
Compatibility
Direct OEM replacement for the ICP / Tempstar / Heil YF060G heat pump and other ICP-family outdoor units that specify the 34332100 defrost board. Confirm your existing board's part number and connector layout before ordering, as defrost boards are model-specific.
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/control service panel.
- Document — Photograph every wire harness and connector position on the existing board.
- Remove — Unplug the connectors, release the standoffs/screws, and lift out the old board.
- Install — Seat the new board on the standoffs and reconnect each harness exactly as photographed.
- Test — Restore power, run a heating cycle, and confirm proper defrost initiation and termination.
Signs You Need a Replacement
- Outdoor coil ices over and never enters defrost
- Unit stuck in defrost or constantly reversing
- No compressor or fan operation in heat-pump mode
- Visible burnt traces, scorched relays, or a blown onboard fuse
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