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Hydrotek 2120: Station 1 Repeats Instead of Advancing

Timer Mode: Zone 1 Runs, Off, Then Zone 1 Again

Manual advance works; auto sequence fails on a 4-zone Hydrotek 2120.

Reset First

  1. Disconnect AC power and battery 5 min.
  2. Reconnect, reprogram per manual.

If Persists

Controller logic board failed. Replace unit. Hydrotek is obsolete; modern 4-zone controllers (Rain Bird ESP-4TM, Hunter XC-4) are $80–$120.

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