Watering Issues; Electrical Issues - Rain Bird ST8-WiFi Installation Manual And Operation Manual

Watering Issues

Problem
Programmed schedules
and manual watering
functions do not start.

Electrical Issues

Problem
Display is blank.
Display is frozen and
Timer will not accept
programming.
Possible Cause
Water source not supplying water.
Wiring is loose or not properly
connected.
Valve wires are corroded or
damaged.
Connected rain sensor may be
activated.
Jumper wire connecting the two
SENS terminals on the terminal
block may be missing or damaged.
Possible Cause
Power not reaching the Timer.
An electrical surge may have
interfered with the Timer's
electronics.
Possible Solution
Verify there is no disruption to the main water line
and that all other water supply lines are open and
functioning properly.
Check that valve wiring and master valve or pump start
relay wiring is securely connected at the Timer and in
the field.
Check valve wiring for damage and replace if necessary.
Check wiring connections and replace with watertight
splice connectors if needed.
Let the rain sensor dry out or else disconnect it from the
Timer terminal block and replace it with a jumper wire
connecting the two SENS terminals.
Jumper the two SENS terminals on the Timer terminal
block by connecting them with a short length of 14 to
18 gauge wire.
Possible Solution
Verify the main AC power supply is securely plugged in
or connected and working properly.
Verify the power supply wires are connected to the
Timer "24 VAC" terminals. (Indoor model.)
Unplug the Timer for 2 minutes, then plug it back in. If
there is no permanent damage, the Timer should accept
programming and resume normal operation.
Press and release the RESET button.
15