Remove/replace thermostatic cartridge – SPS8729Created OnJanuary 7, 2025Last Updated OnJanuary 7, 2025byChloe Charlotte You are here: Main Shower Panels SPS8729 Remove/replace thermostatic cartridge - SPS8729 < All TopicsRemove the cover from the thermostatic controller knob. Use a slotted screwdriver to loosen the screw. Remove the knob. Remove the temperature limit. Remove the nut at the back of all three controller knobs. Remove the cover from all three controller knobs.