255 700 Logix Series Service Kit (Valve Disks Screen Cap O-Rings 1 piece Spring)

This service kit is the full rebuild option for Autotrol 255/700 Logix series control valves, bundling new valve discs, a screen/cap assembly, the O-rings and a one-piece spring in a single pack. It's the kit to reach for when a Logix valve is showing more than one internal wear issue rather than a single failed seal, and customers searching for an Autotrol 255 rebuild kit, Logix valve service kit or 255/700 seal kit are looking for exactly this combination, stocked by WrekinWater for softener engineers and competent DIY servicing.

Technical specifications

Symptoms that mean you need this part

• Valve fails to draw brine properly or regeneration doesn't complete
• Water leaking from the valve body or drain line during a regen cycle
• Softener short-cycling, sticking mid-regeneration or behaving erratically
• A service inspection has found wear on more than one internal component

Why it fails / why it matters

The discs, screen/cap O-ring and spring inside a 255/700 Logix valve are all wear parts subjected to the same conditions: constant piston travel, exposure to grit and iron in the raw water, and the hardening effect chlorinated mains water has on rubber and elastomer components over time. Because they wear at a similar rate, a valve that has failed on one seal has usually got others close behind it, which is why a full kit rebuild is generally more cost-effective and reliable than replacing a single O-ring and having to strip the valve down again a few months later.

Why buy this from WrekinWater

WrekinWater has been supplying genuine and OEM-spec Autotrol, Fleck, Clack and Kinetico service parts for 15 years from its base in Bettisfield, Shropshire, and this kit is kept in stock ready to dispatch rather than sourced to order. With more than 50,000 customers served and an Excellent rating on Trustpilot, WrekinWater's team can also confirm which kit matches your specific 255/700 Logix valve before you buy.

How to fit it

1. Isolate the softener, switch the valve to bypass and relieve system pressure.
2. Remove the drive assembly/motor, noting the orientation of the piston before withdrawing it (a locking bar makes this easier and safer).
3. Withdraw the piston and disc stack, then remove and discard the old discs, screen/cap assembly and O-rings.
4. Clean the valve bore and inspect it for scoring or excessive wear before fitting new parts.
5. Fit the new discs, screen/cap assembly, O-rings and spring from the kit in the correct order, referring to the Autotrol service manual for your valve.
6. Reassemble the drive assembly, restore power and water, and run a manual regeneration to confirm correct operation.