Special Protection - Toro LawnMaster 53603 Owner's Manual

VI. Special Protection
Lawn Master has been designed to ensure operation of the timer in the event of unexpected
electrical disturbances, power loss or valve failure.
Memory Protection
Your programs are stored in a unique electronic device called "Non-Volatile Memory." This
protects your programs from being lost when electrical power is interrupted for up to 10
years, even without having a battery connected. However, if power is lost and there is no
battery connected, you will have to reprogram the date and time once power resumes.
Circuit Protection
Lawn Master electronics are protected from electrical disturbances such as large transient
voltages and static discharge.
Electronic Fuse
Lawn Master is protected with an electronic circuit breaker. If the timer's electronics detect a
short circuit at one of the valves, that valve will be shut off automatically, and the display
will show "SHORT." However the timer will continue running the remaining valves as
programmed so that you do not lose all of your watering. You only miss watering on the one
valve that has the short. Once you have repaired the valve, set the dial to the Run position,
and the timer will be ready to enable automatic execution of all selected programmed
schedules once again.
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