When you run into a problem with your Whirlpool water softener that you don't know how to fix, rather than losing time waiting for customer service (or spending money on a technician), attempt to find a solution for the problem on your own. Additional help is available at Whirlpool's website (see Resources).
Display Screen Is Blank
If the display screen on your Whirlpool water softener is blank, make sure that the unit is plugged into a live outlet. Ensure that no fuse has blown and that the circuit breaker hasn't tripped. Attempt to reset the electronic controls. Activate the recharge feature on the unit. If none of these steps work, you most likely have a defective electronic control board that will need to be replaced. Your manual has instructions on how to do this.
Hard Water Problems
Occasional hard water may mean that the time setting is set incorrectly. Check it and change it if necessary. The water hardness and/or model code may have been set incorrectly. Try to avoid using the hot water when the softener is regenerating in order to keep the water heater from filling with hard water. Retest the raw water for hardness and iron. Make sure you don't have a leaking faucet or toilet valve. In just a few days, leaks like these can waste hundreds of gallons of water.
Iron in the Water
If you suspect your water may have iron in it, test the raw water according to the instructions in the "Set Water Hardness Number" section of your manual. Also, clean the resin bed with resin bed cleaner to remove iron in the soft water. If you have bacterial or organic bound iron, it cannot be treated by a water softener.