No cold water in shower
Oh please help. We have a Tuscany 45LT with Auqua Hot. The plate over the shower handle says Fontana B125. I think the valve cartridge is messed up. When turned on full hot it's fine. When turning the temp down it stops flowing at the mid point. Thor thinks it's a pinched line and sent me the plumbing prints. I've not found a pinched line. I can't find a source for Fontana faucet cartridges. Also reluctant to pull or damage the cartridge since there are no water shut offs to the shower. Oh my dealer says it's a Moen, I don't think it is after looking at it.
Thanks for any suggestions!