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NO AC DISPLAY The controller has stopped receiving AC power and is running on the backup battery
NO POWER TO THE OUTLET? Check all wall switches,timers, or power strips that may be connected to the outlet
VERIFY POWER TO THE CONTROLLER Disconnect the backup battery from the controller
IF DISPLAY GOES BLANK The transformer could be damaged and may need to be replaced
TEST TRANSFORMER Use a volt-meter to test for 24-28 volts AC
Only a licensed electrician should test hardwired transformers
I didn't understand till now ... t have erased the Chinese subtitles on the screen. ... It came with an AC adapter, two triple A batteries, and a Bluetooth remote.
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