Washlet issue with the nozzle (but not bidet) – HELP

Hi, I came back home after 2 weeks business trip and my regular (おしり) nozzle doesn't work anymore. The model is Panasonic CH931s. The nozzle still deploys, the overflow valve (not sure if thats the right name – it's the small hole next to the main nozzle that releases low-pressure water straight down) still releases water, but the water doesn't come out of the main nozzle.

It also makes weird clicking sound after "cleaning" and going back into the seat body – about 5 clicks, which it never did before.

The bidet nozzle for women still works fine.

I cleaned the water filter, cleaned the nozzle, but no result.

Any suggestions, except for the obvious replacement? I would like to fix if possible.

by Iekei_ramen