Hello Will,
We’re sorry we missed your review and the trouble you encountered with your new tub and shower faucet # 8P8-WS2LRSGS. If you haven’t called us, we want to help. A couple of things to look out for is to make sure that when you insert the cartridge, there are 2 tabs between 2 of the screw holes of the cartridge that need to be facing downward for it to start cold and gradually get warmer as you rotate the handle. The second one is, the Pfister valve model #0X8-310A included in this set has a temperature disc that can be adjusted to the desired temperature. If the adjustment does not make a difference, then the cartridge would need to be replaced. Please follow the link below to the valve body instruction sheet and refer to page 9, step 11, for detailed instructions in adjusting the temperature.
https://s7d1.scene7.com/is/content/Pfister/44353-0200
I hope these tips help. We’re here for you and want to help get this resolved. Please call us at 1-800-732-8238 if you need further assistance or a new cartridge, and we’ll be happy to help in any way possible.
Thanks,
Pfister