Kohler K-304 Shower faucet temperature acting funky

[Mikejc]

This is very strange.

I have an issue where the shower valve when I first turn it on will stay hot even though I try to move the handle to a colder position. However, if I immediately turn the valve off then back on again then it will work ok.

Very strange. What should I replace?

 

[Terry]

I don't know what brand of shower that is, but you might want to change out the cartridge if that one is glitching up.

 

[Sponsor]

 

[Mikejc]

Thanks for the reply!

I think the trim is devonshire from kohler but I have no idea where I can find the internal components like a cartridge. This is a picture without the handle on it. Anybody know where I can find this cartridge?

 

[Terry]

https://terrylove.com/forums/index.php?threads/installing-a-k-304-kohler-rite-temp-bath-shower-valve.41581/