Orbit Green Thumb Timer: Water Won't Pass Through

New Battery Timer Won't Flow

Orbit "Green Thumb" 1-session timer installed, duration set to ON, good pressure, but no water through timer. Old timer worked 12 years.

Check List

1. Batteries: Fresh, correct polarity.
2. Reset button: Press after battery install (back of unit).
3. Flow direction: Arrow on timer matches water flow.
4. Inlet screen: Clean if clogged.

Test

Remove timer, run water through hose—confirms supply. If timer still blocks flow with batteries and reset, unit may be defective (return/exchange).