Check if two red valves on the bypass on back of the unit are fully opened. If they are open the red handles are in paralel position. If they are closed then the red handles are pointing to each other.
Water softener Reg.cap number does not decreasing
The second line is REG.CAP number it should look approx. as this eg. 02.53T (You have there probably different number. This is the only example). This REG.CAP. the number should be counting down to zero when you use the water.
If the Reg.Cap number does not decreasing, Visit: The Water Softener Doesn’t Regenerate Automatically
If Step 1 and Step 2 is working
Check if the Water softener is using salt or not using salt
If softener using salt move to step 4
Step 1 & 2 would need to be check first if not using salt
Still not using salt
Check if water is in salt tank: No Water In Brine Tank
Test the water
To know more about how to test water please watch this video from time 0.09 to 0.39
If your water softener is over one year old a service would be needed and the service to be clean
Would be ANNUAL MAINTENANCE
Visit: Annual Maintenance