500s expressions 8.5 shower

Dear Barrie with regard my shower pulsating when switched on 4.01 ohms across solenoid. Shorted out on/ off switch made no difference but noticed arching flash on top connection on the phase shut down relay (contacts?) any ideas?.
Asked 11 years ago by Anonymous
http://www.showerdoc.com/solenoid-coil-universal-no-valve-hydr-27600

I would be inclined to replace the solenoid, as others with a similar fault have tried changing the shutdown relay to no avail.

Answered 11 years ago by Anonymous

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