Irritrol Total Control: Two Valves Intermittent — Check Diaphragms

Two valves in same box work intermittently (26V → 23V with solenoid). Solenoids replaced, same issue. Diaphragms likely worn — replace one to test.

Irrigation: New Homeowner: Toro Greenkeeper System – What to Do with Valves in the Box?; Irritrol 476PR Shows “1FUS” and Drains 9 V Battery in Days; Richdel 446PR Hybrid: Zone 2 Runs Continuously Even in Off Position; Toro Vision II: One Zone Shows 24V Constantly But Won't Water; Irritrol KwikDial Blinking Display: Reset or Replace Panel; Irritrol KD-9 "Fuse" Display: Systematic Solenoid and Wiring Check; Testing a Rain Bird ESP-6TM Controller After Lightning Damage; Irritrol Controller Error 1: Valve 1 Solenoid or Wiring Fault; Valves 2 & 4 Low Pressure: Replace Diaphragms, Verify Orientation; Old Sprinkler Valve Shuts Off After 15 Seconds on Drip: Voltage Drop Test

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