What Does The Red Flashing Light Mean On My Nano?Updated 12 days ago

The Red LED indicates a fault condition. Details of the fault can be detected by counting the number of repeating flashes.

•  2 flashes is an over-temperature condition,
•  3 flashes is a UVC lamp fault or open circuit. 
• More than 3 flashes are an internal circuit fault.

You may reference the full manual here for further instructions: 

the red light in my nano hct inductr whole house purifier/ the red red light flashes 3 times and the to solid blue for a short period then returns back to red flashing 3 times. this series repeats itself over and over. whats wrog/ the red light in my nano hct induct whole house purifier flashes 3 times then returns to a solid blue for a short time then returns back to the red light flashing 3 time/ the red light in my nano hct induct whole house purifier flashes 3 times then return