How to Fix / Troubleshooting

Safety: Do not apply open flames or extreme heat to frozen plumbing. Turn off water supply immediately if you suspect freezing.

Thaw gradually: Allow the area to warm slowly using ambient heating or a gentle space heater at a safe distance.
Inspect for leaks: Once thawed, check the Harvey valve, hoses, and cabinet for cracks or leaks before repressurizing fully.
Insulate: Add pipe insulation and, if necessary, an insulated cover around the softener to prevent future freezing.
Bypass if damaged: If leaks are present, place the unit in bypass and contact a technician for repair or replacement of damaged components.

Freeze damage to the valve body or cabinet usually requires replacement of the affected Harvey parts.

Harvey softener installed in a garage or loft freezes in cold weather and stops working

Possible Causes