GREEN indicates a zone with a scheduled start time.
BLUE indicates that a zone is running
LIGHT BLUE indicates a zone that is queued up to run.
GREY indicates a zone without a scheduled start time (not shown).
Controller has a Blank Display
First, make sure there is power to the controller's outlet. Use a test lamp or any other
110VAC device to determine if there is voltage at the outlet. If there isn’t power, or if you
have a controller that is hard wired, check the circuit breaker at the main breaker box.
Caution: High voltage testing on the transformers primary power side should only be done
by a professional electrician or irrigation contractor.
Checking Transformer Voltage
If you have power at the outlet, the next thing to check is the transformer output. Use a voltmeter to check the
voltage either on the two transformer wires or at the two AC screw terminals on the controller. The transformer
should have an output in the range of 24VAC to 28VAC.
If the wall outlet has 110VAC and the transformer has no voltage output, you need to
replace the transformer.
Cycle Controller Power
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