Troubleshooting - Toro TMC-212 User Manual

373-0319 TCM 212 Doc2 12/20/04

Troubleshooting

If you are having a problem with the controller, check the following symptoms, possible causes and remedies.
If the problem can not be resolved or you would like assistance with any Toro irrigation product, call 1-800-664-4740
or 1-951-688-9221 (outside U.S.) Monday through Friday, 7:30 a.m – 4:00 p.m. (Pacific Standard Time).
Symptom
The display is blank and the
controller does not operate.
Watering programs start at
unscheduled times.
A station does not turn on.
A station does not turn off.
Program starts again after
completion of a watering cycle.
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Possible Cause
Main power is disconnected.
Watering programs have overlapping
start times (stacked).
Faulty wire connection at station
module.
Shorted valve wire connection or
faulty solenoid. Electronic Fuse
has disabled station operation.
No station time entered.
Valve problem generally caused by
a bonnet leak or corroded solenoid.
Season Adjust setting greater than
100%.
Watering programs have overlap-
ping start times (stacked).
Remedy
Check the transformer connections
(indoor model) or circuit breaker at
service panel (outdoor model).
Reduce station times. Change/remove
program start times. (See p. 27).
Remove wire from station module.
Strip back enough insulation to see
1/8" (3mm) of bare wire when fully
inserted.
Repair wire connections. Inspect
solenoid and repair or replace as
necessary.
Enter a station time (See p. 28).
Inspect valve bonnet seal and/or
solenoid. Replace as needed.
Review Season Adjust factor and
reset to 100%. (See p. 34)
Reduce station times. Change/remove
program start times. (See p. 27).