Water Softener: No display

Lack of electrical power, a failed power transformer or a faulty timer can prevent the water softener display from lighting up.

Check the electrical outlet by unplugging the water softener and plugging a small lamp or appliance into the outlet to check for power. Reset the house circuit breaker for the outlet if the outlet is dead.

If the electrical outlet is okay, check the transformer wiring connections to the timer (with the transformer unplugged from the electrical outlet). Reconnect any loose wires. If the transformer wiring connections are okay, check the transformer's wires for damage and replace the transformer if you find wiring damage.

If the electrical outlet and transformer are both okay, then you'll likely need to replace the water softener timer because it's not lighting up the display.

water softener

These repairs may help solve your water softener problem

Replace the water softener timer

Replace the water softener timer

The timer is an electronic control board that lets you program the water softener. The timer also controls the functions such as water softening and flushing the resin filter. Replace the timer if it fails to control the water softener's functions.

January 1, 2015
By Lyle Weischwill
How to replace a water softener timer

If your water softener control panel does nothing when you press a button, or if the control panel won't come on at all, the timer might be broken. This step-by-step repair guide and video show how to replace a water softener timer in just 15 minutes.

Repair difficulty
Time required
 15 minutes or less
Read more
Symptoms for water softeners

Choose a symptom to see related water softener repairs.

Main causes: broken resin tank screen, bad resin tank seals, cracked upper distributor in resin tank
Main causes: faulty brine valve assembly, bad rotor valve
Main causes: clogged drain hose, faulty rotor valve, leaky rotor valve seals
Main causes: lack of electrical power, bad power transformer, faulty timer
Main causes: loose water line connections, cracked water-carrying components, bad rotor valve seals
Main causes: empty salt tank, salt bridge, depleted resin, clogged or damaged venturi, broken rotor position switch, failed timer
Main causes: salt bridge inside the salt tank, bad timer, valve motor failure, faulty rotor valve, clogged venturi
Main causes: broken water flow meter, faulty timer, water flow to softener is bypassed
Repair guides for water softeners

These step-by-step repair guides will help you safely fix what’s broken on your water softener.

How to replace a water softener rotor position switch

The rotor position switch detects the position of the valve rotor. If the rotor position switch fails, follow these steps to replace it in about half an hour.

Repair difficulty
Time required
 30 minutes or less
January 1, 2015
By Lyle Weischwill
How to replace a water softener venturi

The venturi draws brine water from the salt tank to the resin tank for regeneration. Follow these steps to replace a damaged venturi.

Repair difficulty
Time required
 15 minutes or less
January 1, 2015
By Lyle Weischwill
How to replace a water softener valve motor

The valve motor rotates the valve rotor to operate the water softener. If the valve motor fails, follow these steps to replace the valve motor.

Repair difficulty
Time required
 30 minutes or less
Articles and videos for water softeners

Use the advice and tips in these articles and videos to get the most out of your water softener.

February 1, 2018
How to read a wiring schematic video
By Sears PartsDirect staff

Learn how to decipher symbols so you can buy the right part for your problem.

January 20, 2015
Water softener common questions
By Sears PartsDirect staff

Find answers to some of the most commonly asked questions about water softener repairs.

January 20, 2015
How a water softener works
By Sears PartsDirect staff

Learn how a water softener works to provide your home with soft water.