Replace Solenoid Valve on HWH Leveling System?

It's great to read a posting and see how quickly the help from forum members resolves the issue. We are so lucky to have a resource such as this and members so willing to share their knowledge.

Thanks for help!!

doug is right. the old ring is usually cut in the process of removal.
if you do remove solenoids,just to check, order a seal packet or o-ring kit hwh number R92101.
there are o-rings enough to do it several times.

Fleet Man wrote:
The solenoids just screw into the manifold. You may need a strap wrench or small diameter filter wrench to break it loose if it is too tight to remove by hand. You should not lose any fluid when you remove the solenoid. Be careful not to damage or lose the "O"ring.

The new solenoid comes with new o rings. You cannot remove a solenoid and reinstall with the original o rings, removing the solenoid will cut the existing o rings no matter how careful you remove the solenoid. Doug

The solenoids just screw into the manifold. You may need a strap wrench or small diameter filter wrench to break it loose if it is too tight to remove by hand. You should not lose any fluid when you remove the solenoid. Be careful not to damage or lose the "O"ring.

Here's a link to HWH Service Manuals. The ML42056 helps you identify the system you have by type of controls. Then you select the service manual based on that information.