Product Details
- Product type: Digital power supply only
- Brand compatibility: AutoPilot / Pool Pilot salt chlorine generator systems
- Common use: Replacement power supply for compatible digital salt chlorination systems
- Display/function area: Digital control display for system operation
- Voltage compatibility: Verify exact voltage setup before publishing
- Included cable: Verify whether a 12-foot cell cable is included
- Best for: Replacing a failed or damaged AutoPilot digital power supply
- Not included: Salt cell, manifold, pool salt, plumbing tools, and installation supplies unless listed in the package
For buyers comparing a complete system instead of only the power supply, the AutoPilot ST2SC48SUS digital chlorine generator may be a better product to review.
Compatibility Notes
This DIG-220 power supply should be matched with your current AutoPilot system model, salt cell type, wiring layout, and manifold setup. It should not be selected by appearance alone.
If your existing salt cell also needs replacement, the AutoPilot RC-42 Clear SuperCell SC-48 replacement salt cell may be a related part to check before replacing only the power supply.
If your repair involves the plumbing side of the system, the AquaCal AutoPilot manifold assembly STK0035 may be useful to review separately.
When to Replace the Power Supply
This power supply may need replacement if the display is not responding, system readings are inconsistent, the unit does not control chlorine output correctly, or the existing enclosure/control unit is damaged.
Before replacing the power supply, inspect the cell cable, salt cell, relay, fuse, wiring, sensors, and power source. A failed connected part can sometimes cause symptoms that look like a bad power supply.
Installation Guidance
Turn off power at the breaker before opening or replacing any pool equipment electrical component. This is an electrical replacement part, so installation should be completed by a qualified person if you are not experienced with pool equipment wiring.
Mount the power supply securely, connect the wiring according to the manufacturer’s instructions, and confirm that the cell cable and system connections are seated correctly before restarting the chlorinator.
Related AutoPilot Electrical Parts
If the issue is related to a damaged or worn cable instead of the full power supply, the AutoPilot salt cell cord replacement may need to be checked.
If troubleshooting points to an internal relay issue, the AutoPilot DIG-220 Pool Pilot digital power supply relay may be a related service part to inspect separately.
Maintenance and Troubleshooting
Keep the power supply protected from water intrusion, direct chemical exposure, insects, corrosion, and overheating. During seasonal startup, check the display, cable connections, error messages, salt level, water temperature reading, and chlorine output setting.
If the system still does not work after replacing the power supply, inspect the salt cell, manifold, cell cord, sensor connections, and pool water chemistry before replacing additional parts.














