Automatic Electronic Diagnostics
This water softener has a
The troubleshooting chart shows the error codes that could appear, and the possible malfunctions for each code.
While an error code appears in the display, all buttons are inoperable except the PROGRAM button. PROGRAM remains operational so the service person can perform the Manual Advance Diagnostics, see below, to further isolate the problem.
Manual Advance Diagnostics --- Model WHES20
Use the following procedures to advance the water softener through the regeneration cycles to check operation.
Lift off the salt hole cover, remove the top cover by unlocking the tabs in the back and rocking forward, to observe cam and switch operation during valve rotation.
1.Press and hold 
PROGRAM for 3 seconds until 000 - - shows in the display.
2.The first 3 digits indicate water meter operation as follows:
000 (steady) = Soft water not in use, and no flow through the meter. Open a nearby soft water faucet.
000 to 199 (continual) = Repeats display for each gallon of water passing through the meter.
NOTE: If you don’t get a reading in the display, with faucet open, pull the sensor from the valve outlet port. Pass a small magnet back and forth in front of the sensor. If you get a reading in the display with the magnet, unhook the in and out plumbing and check the turbine for binding.
3.The letter (P) and dash (or dashes) indicate POSITION switch operation. If the letter appears, the switch is closed. If the dash shows, the switch is open.
4.Use the 
RECHARGE button to manually advance the valve into each cycle and check correct switch operation.
NOTE: Be sure water is in contact with the salt, and not separated by a salt bridge... see “Breaking A Salt Bridge” section.
5.While in this diagnostic screen, the following information is available and may be beneficial for various reasons. This information is retained by the computer from the first time electrical power is applied to the face plate.
30
