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Do not disturb sensor scanning procedure (wait until water flow stops and LED switches off) Replace electronics module (See “Replacement Parts”) Change mode or reset sensor (See “Care and Maintenance”) Check external water pressure Provide pressure between 20 - 125 psi Replace solenoid valve (See “Replacement Parts”) Replace electronics module (See “Replacement Parts”) Water runs continuously Water fl ows although shut-off screw is inoperable removed Water drops on infrared window Infrared windo