ESP-ME3 Controller
17
EN
Watering Issues
Problem
Possible Cause
Possible Solution
Programmed sched-
ules do not start.
Connected rain sensor may be activat-
ed.
Set Rain Sensor to Sensor OFF 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 oper-
ating 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 Sensor OFF.
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 Weather Sensors and set to Sensor
OFF.
Too much irrigation
Multiple Start Times in the same pro-
gram.
Separate start times are not required for each valve. A
program only requires single start time in order to run all
stations in that program.
Multiple programs are running at the
same time.
Review programming to assure that the same Station is
not active in multiple Programs.
Valve is malfunctioning.
Check to see if the ALARM light on the controller is lit
solid, then repair or replace the valve if necessary.
Seasonal Adjust setting is too high.
Set Seasonal Adjust to 100%.
Electrical Issues (solid LED illuminated)
Problem
Possible Cause
Possible Solution
Display is blank or fro-
zen, the controller will
not accept program-
ming or is operating
abnormally.
Power not reaching the
controller.
Verify the main AC power supply is securely plugged in or connect-
ed and working properly.
Controller needs to be reset. Press the Reset Button. For details see “Reset Button” section.
An electrical surge may have
interfered with the control-
ler’s electronics.
Unplug the controller for 2 minutes, then plug it back in. If there is
no permanent damage, the controller should accept programming
and resume normal operation.
Automatic error detec-
tion indicates a problem
by ALARM LED and
an error message on
display.
Short circuit or overload
condition in valve, master
valve or pump start relay
wiring.
Identify and repair the fault in the wiring. Refer to compatible
pump start relays. For details see “Connect Pump Start Relay”
section.
LED is flashing or solidly
illuminated but I see no
message on the LCD.
Dial not in AUTO RUN
position.
Turn dial to AUTO RUN position. Push Reset button or power cycle
the controller.