Duratech DURAPRO-21 Main Control Board (R410A)
Overview
As a retailer of pool and spa spare parts, I supply this genuine Duratech main control board for the DURAPRO-21 heat pump configured for R410A refrigerant. The control board is the central processing unit of the heat pump, managing all operational functions including compressor control, defrost cycles, temperature regulation, and fault diagnostics.
Compatibility
This control board is designed for the Duratech DURAPRO-21 swimming pool heat pump running on R410A refrigerant gas. Please verify your unit’s refrigerant type before ordering, as R32 models require a different board.
Specifications
| Specification | Detail |
|---|---|
| SKU | 6770396488 |
| Compatible Model | DURAPRO-21 |
| Refrigerant System | R410A |
| Manufacturer | Duratech |
| Component Type | Main Control Board |
Installation Note
Ensure the heat pump is fully isolated from the electrical supply before replacement. Correct wiring connections are critical—refer to the unit’s wiring diagram during installation. This work should be carried out by a qualified technician.


