Humidifier not working right

Hi everyone. I sure hope you can help. I have a philips respironics remstar system one with a humidifier. I've had it since April or May this year. It was doing fine but all of a sudden it like to drowned me. I read that happens occasionally. But after that, the next few times I used it, the heat comes on for the water, but it's not moving the water into the hose and in my nose. I've turned it all the way up which is usually too much for me, but nothing. Anyone seen this?

Also is there a warranty at this point or am I SOL? TY

Linda

Sorry I missed the original post.

Yes, the warranty on PR machines is 2 years.