When you look at the digital display on your 40278 unit, you might see the word "FULL." This is not an error code; it is a status message.
If the tank is filled higher than the salt level, or up to the top, it is known as a or "water softener full" issue. This usually indicates that the water softener is failing to regenerate properly. Top Reasons Your Water Softener Brine Tank is Full of Water 40278 water softener full
During a normal Morton or Kenmore water softener regeneration cycle, the system pumps a controlled amount of water into the salt tank to create brine. It then relies on a vacuum effect to suck that salty water back out to clean the resin beads. If the water level remains high or overflows, one of the following components has failed: Kenmore Water Softener Tear down Troubleshooting When you look at the digital display on
Check your home's water pressure with a gauge. It should generally be under 80 PSI. How to Fix a "40278 Full" Water Softener: Step-by-Step Follow these steps to diagnose and repair your unit: Top Reasons Your Water Softener Brine Tank is
However, there was something strange about this particular error code. It seemed to appear only on specific models of water softeners, and only when the device had reached a certain level of usage. John began to suspect that this error code was more than just a technical glitch – it was a sign of a larger issue.
By far, the most common culprit behind a full Kenmore brine tank is a dirty or clogged venturi valve. Hard water minerals, sediment, and iron easily clog the tiny openings inside this assembly, breaking the vacuum seal. How To Clean A Kenmore Water Softener