Sterling Water Bypass Valve Wear or Damage

Bypass valve is hard to turn or leaks when moved

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Worn bypass seals, Mineral buildup, Cracked bypass body, Overtightening in the past

Safety: Place the system in bypass and depressurize before disassembling the bypass. Have towels ready for minor spills.

Steps:

1. Exercise valve: Gently move the bypass handle through its positions several times to break light deposits.
2. Inspect for leaks: If water seeps from the bypass body or stem, the seals may be worn.
3. Rebuild or replace: Install a bypass seal kit or replace the entire bypass valve assembly if cracked.
4. Lubricate: Use a silicone-based lubricant on O-rings during reassembly.

Medium 3/5

Bypass Valve Assembly

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