The nano Induct (NIND) should have a green light and blue light.
The nano Induct (NIND) should have a green light and blue light if running properly.
A blue flashing light indicates that it is time to replace the AHPCO Cell.
A red light indicates that the lamp has failed or something else that has failed on the ballast.
If replacing the AHPCO Cell doesn't change the red light to green, the purifier should be replaced.