1 sensor not working

My system seems to have a faulty sensor. Both fans are working, I’ve cleaned out as per instructions.
Does this mean I need to buy new sensors?

The Vines in Western Australia.

Real-Time Air Quality Map | PurpleAir

Many thanks


I am having the same problem. I took the same action. So I’d like to know the answer to this one.

Linda in California


It is possible it’s bad sensors, but how old are they?

How old are the sensors? Yes, it may be simply bad sensors. You can buy a replacement for them.

Sensors are about 6 years old

1 year and a few weeks. We blew them out and they worked okay for a while, but they appeared after several days to be downgrading.

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This may be a bit off-topic but I have a LaCrosse weather station whose sensors may have been ruined the first day the station was installed due to exposure to direct sunlight. Ever since that day in July, the station does not work right, let alone it can’t connect to the house wifi or whatever. So much for these sensors and technology.

You get what you pay for I guess…