Sprinkler has detected an abnormal temperature range.
Top Causes
● It is too cold to run your sprinkler system due to the risk of freezing water potentially damaging internal components.
● Sprinkler is too hot to run from extreme heat or overheating from a malfunctioning internal component (very unlikely).
Do not run sprinkler in freezing temperatures (sub 32 degrees Fahrenheit). Sometimes this happens on the first run of the season, allow system to idle for 30 minutes before attempting to run again, if issue persists, open a service case.