Biemech, I can't see how the computer is causing the increased torque or friction in an old or new seal or a new motor. I'd suspect a rotor bushing binding causing misalignment of the seal, or a cheap material type seal causing friction slowing the motor down only if the motor couldn't put out enough torque to overcome the friction or binding. Also, I thought there was a contact switch or two on a SEARS, GE, Whirlpool, North Star, mortonsalt.com and Ecowater control valves. If there is then the computer isn't operating on a timed basis.
Well I went and looked it up myself and every valve in the Kenmore line has a contact switch to turn the motor on/off and tell the computer where the rotor is in the regeneration or when it gets back to service. I suspect the same in the other Eco manufactured big box brands and Ecowater softeners.
Here are links showing a contact switch:
http://www.kenmorewater.com/website/...n/su_main.html
http://www.kenmorewater.com/website/.../ts_index.html
The Clack has no contact switches.





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