Frequently Asked Questions
Problem Possible Cause Possible Solution
Display shows a program
is active, but system isn’t
watering.
Water source not supplying water. Verify there is no disruption to the main water line and
that all other water supply lines are open and functioning
Wiring is loose or not properly
connected.
Check that field wiring and master valve or pump start
relay wiring is securely connected at the controller and in
the field.
Field wires are corroded or
damaged.
Check field wiring for damage and replace if necessary.
Check wiring connections and replace with watertight
splice connectors if needed.
Loss of AC power. When there is a power loss and a 9 volt battery is
installed, the system does not irrigate but programs show
as remaining active.
NO AC message on
display.
No Power detected. Check circuit breaker and that unit is plugged into socket
or properly connected to power source.
Controller may be plugged into a
GFI outlet or an outlet that is wired
to a GFI outlet.
Check power to the outlet or reset the circuit breaker.
Programmed schedules
do not start.
Connected rain sensor may be
activated.
Set Rain Sensor to BYPASS to ignore the rain sensor. If
watering resumes, the sensor is operating properly and
no further correction is needed.
Connected rain sensor may not be
operating properly.
Let the rain sensor dry out, or disconnect it from the
controller terminal strip and replace it with a jumper wire
connecting the two SENS terminals, or set to Bypass.
If no rain sensor is connected, the
jumper wire connecting the two
SENS terminals on the terminal
strip may be missing or damaged.
Move dial position to Sensor Bypass and set to Bypass.
It just rained and
the alarm light is not
illuminated, why?
This is normal operation. The
ESP-Me does not consider the
interruption of irrigation due to
rainfall an alarm condition.
This is normal operation.
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