The flashing red light is an indication that the seal on the tank cap is missing. We recommend checking the tank cap to determine if the blue seal ring is installed correctly or is missing.
If the blue seal ring is missing, we can assist you further with a replacement cap.
Please reach out to us for further assistance by submitting a ticket or calling 1-657-275-3734 Monday through Friday 8 am PST to 5 pm PST with your proof of purchase and shipping address if you require a replacement cap, or if this does not resolve the issue.