40278 Water - Softener Full [verified]

Ensure the drain hose is straight and free of obstructions. If the hose runs into a floor drain, make sure there is an "air gap" and that the end of the hose isn't submerged in water. Step 4: Reset the Control Board

A: Yes, you can use potassium chloride. However, it is more expensive than sodium chloride. It is a great option for those on a sodium-restricted diet, as it adds potassium to the water instead of sodium. Be aware that potassium chloride may require more frequent cleaning of the brine tank as it can be more prone to mushing.

Troubleshooting the "40278 Water Softener Full" Error: Causes, Quick Fixes, and Maintenance Guide 40278 water softener full

If your is suffering from a brine tank full of water , it means your system is failing to draw out the saltwater brine necessary to clean its internal resin bed. In a normal operating cycle, the brine tank should only hold a few inches of water—typically 3 to 6 gallons. When it overflows or stays completely full after a regeneration cycle, it drops your home's water quality back down to hard water status.

The 40278 water softener full operates on a two-tank system: Ensure the drain hose is straight and free of obstructions

If you’ve opened your Kenmore 40278 (Elite) water softener only to find a salt tank full of standing water, you aren't alone. Normally, you should only see a few inches of water at the bottom, often hidden beneath the salt. When that water level rises to the top, it’s a clear sign that your system isn't "drawing" the brine correctly during its regeneration cycle.

The error is usually a cry for maintenance. By cleaning your venturi and checking for drainage issues, you can usually get your soft water back without a costly service call. However, it is more expensive than sodium chloride

Even the best systems can occasionally act up. Here is a quick troubleshooting guide for the most common problems.