I bought a purifier + humidifier (formaldehyde version) last year and have been using the humidifier on and off, never had any issues and have been diligent with maintenance.

I’m unsure what went wrong but, the humidifier is not humidifying at all, I believe the pump either broken or clogged because the few times that it has seemingly made an attempt to pump water, it has resulted in a super loud noise that persisted until I restarted the machine. 

The water level hasn’t decreased a single bit either, I ran 3 deep cleaning tests (with and without citric acid), no luck.

I already contacted Dyson and I’m waiting for a response but I was curious to know if anybody has had a similar issue or knew how to fix it, I think the entrance of the pump is what might be clogged but I’m afraid to tamper with it since the user manuals don’t mention it.

Thank you