Price-Pfister tub/shower diverter faucet leaks hot water when diverter shower on

Hi everyone,
I have another problem where I installed a new tub faucet with a shower diverter valve several years ago probably 7 or 8 years ago – where you have Hot and Cold and the shower diverter valve in the middle. Worked pretty good for several years.
When the shower is...
Price-Pfister tub/shower diverter faucet leaks hot water when diverter shower on