April 19, 2023

Whirlpool water softener error codes

Whirlpool

These error code explanations can help you diagnose a problem with your Whirlpool water softener. For repair how-to help, visit the PartsDirect repair help section, which includes repair help for water softeners, other major appliances, lawn and garden equipment, garage door openers, vacuum cleaners and more. Search for your model number to find a complete list of replacement parts for your water softener.

Error Code
Condition
DIY advice
Err1, Err3 or Err4

Valve motor failure

Check/Repair

If the valve motor doesn't run, unplug the water softener and check the valve motor wire harness for damage or a loose connection. Reconnect the valve motor wire harness if disconnected. Replace the valve motor wire harness if damaged. If the motor runs but the rotor valve doesn't move, the problem could be a defective motor or a locked-up rotor valve. Replace the valve motor if defective. Replace the rotor valve if it's locked up. If the motor runs and spins the rotor valve constantly, the position switch may be defective. Replace the position switch if it doesn't detect the rotor valve position.

How-to help
Possible parts
Valve motor, Wire harness, Position switch, and Rotary valve
Err5

Defective timer

Check/Repair

Unplug the water softener for 1 minute and then reconnect power to reset the timer. If the error code returns, unplug the water softener and reconnect any loose wires on the timer. Replace the wire harness if damaged. Replace the timer if the wire harness is okay.

How-to help
Possible parts
Timer, Wire harness

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