Supply, breakers and transformers
Before anything is blamed on the operator, the power path has to be confirmed: supply voltage at the source, at the transformer, and at the board. Gate circuits are frequently on a breaker nobody remembers, sometimes shared with landscape lighting or an irrigation controller, and a tripped breaker presents identically to a dead operator.
Transformers fail with age and with surges. A transformer putting out low voltage produces intermittent, baffling behaviour — the gate works sometimes, struggles other times, and appears to have a mind of its own.







