1. Home
  2. Question and Answer
  3. Houseplants
  4. Garden Articles
  5. Most Popular Plants
  6. Plant Nutrition

Two-Station Controller: Station 1 Runs When It Shouldn't—Program Separation Needed

2-station system: Station 1 (lawn, weekly 20min) runs for 5min whenever Station 2 (veg, 3x daily 5min) activates. Already on separate programs.

Root Cause

Station 1 valve staying open when it should close. Causes:

  1. Controller terminal #1 leaking voltage (test when should be OFF)
  2. Station 1 solenoid failing to close
  3. Valve 1 diaphragm debris/damage
  4. Valve 1 body failure

Test Sequence

  1. Measure voltage at controller terminal #1 when Station 1 should be OFF — any voltage = controller fault
  2. If 0V at controller → replace Station 1 solenoid
  3. If persists → clean/replace valve 1

Copyright © www.100flowers.win Botanic Garden All Rights Reserved