Kohler thermo valve K-404 stops working how to fix it??

Hi Vaha

Here is a troubleshooting guide...check it out:

http://www.ca.kohler.com/onlinecatalog/pdf/1021063_5.pdf

Disassemble the valve, purge it of sediment/gunk, inspect all inner parts and replace if needed. Reinstall parts and test.

Good luck!

Mark