What to do if my Pentair FLECK 7000XTR water conditioner fails to regenerate?
- MMiss Paula PruittAug 17, 2025
If your Pentair Control Unit water conditioner isn't regenerating, there are several potential causes. First, ensure the unit has permanent electrical service by checking the fuse, plug, pull chain, or switch. Other causes can be a defective timer (replace it), a power failure (reset the time of day), an open by-pass valve (close it), no salt in the brine tank (add salt and maintain the level above the water), a plugged injector screen (clean it), or insufficient water flowing into the brine tank (check fill time and clean the brine line flow control if plugged). Also consider hot water tank hardness (repeated flushings may be required), a leak at the distributor tube (check for cracks, o-ring, and tube pilot), or an internal valve leak (replace seals and spacers and/or piston).











