Tempstar Defrost Control Board for TCH260AKAA — Heat Pump | Ships Today
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Overview
This is the genuine OEM defrost control board (part number 1086070) for the Tempstar TCH260AKAA heat pump. The defrost board is the brain of the outdoor unit's heating operation: it monitors coil temperature and run time, initiates and terminates the defrost cycle, energizes the reversing valve, and controls the compressor contactor and condenser fan during defrost. When it fails, the heat pump can ice over, fail to defrost, short-cycle, or stop responding to the thermostat entirely. Replacing the board restores correct timed/demand defrost logic and protects the compressor.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1086070 |
| Type | Defrost Control Board |
| Brand | Tempstar (ICP / Heil) |
| Control Voltage | 24V |
| Application | Heat Pump Defrost Control |
| Fitment | OEM Replacement |
Compatibility
Direct OEM fit for the Tempstar TCH260AKAA heat pump. Board 1086070 is used across many ICP-family heat pumps marketed under the Tempstar, Heil, Comfortmaker, and Arcoaire brands. Confirm the existing board's part number, terminal layout, and defrost-timer pin selections before swapping, and match the new board's jumper/pin settings to the original.
Installation Guide
- Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter.
- Access — Remove the condenser control-box service panel to expose the board.
- Document — Photograph every wire connection and note the defrost-time jumper/pin position before disconnecting.
- Remove — Label and disconnect all leads, release the board standoffs/screws, and lift out the old board.
- Install — Mount the new board, set the defrost timer pins to match the original, and reconnect every wire per your photo.
- Test — Restore power, run a heating cycle, and confirm normal operation and a proper defrost initiation.
Signs You Need a Replacement
- Outdoor coil ices up and the unit never enters defrost.
- Heat pump short-cycles or won't respond to the thermostat.
- Reversing valve or fan won't energize during defrost.
- Visible burn marks, scorched traces, or no LED status 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