Water Softener Electronic Control Board WS21X10018

Brand: GE · Fits: 2 models · Reference price: $383.91

WS21X10018 is a GE replacement part (water softener electronic control board). Our fitment data lists 2 models that use it.

When to replace this part

Controls, timers and wiring

Symptom: A cycle that doesn't advance, an unresponsive display, or the unit not starting at all.

Check: Look for burn marks or a burnt smell near the board or terminals, and check whether buttons and knobs respond -- a unit that powers on but won't cycle often traces back to this group.

Models that use this part

Other parts for model GXSF40H01

If you are repairing that appliance, these are the most model-specific parts on file for the same model.

• Faceplate WS31X10023
• Flow Plug-10 WS22X10034
• COVER, BRINEWELL W/ DECA WS31X10024
• Hose WS07X10004
• Overflow Ada WS22X10063
• Water Softener Salt Tank WS32X10016
• Water Softener Salt Tank Cover WS31X10021
• Water Softener Turbine Sensor WS28X10017

Reference price and where to compare

The reference price on file for this part is $383.91. It is informational only, not an offer or an Amazon price — RepairKitHub does not sell parts directly.

Compare WS21X10018 listings on Amazon

Before you order

• Match the part number character for character, including dashes and trailing letters; a single different character is usually a different part.
• Confirm your appliance's model number on its data plate and check that it appears in the list above (or use the model lookup tool).
• If a seller offers a substitute number, check that it appears in this page's replacement list or in the manufacturer's documentation.

Model lookup tool