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Remove Black Valve Cap

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Is Your Shower Not Getting Hot Enough? #diy #helpingothers #plumbing #moen

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What happens here

With the shower handle removed, you will see a black plastic cap (often numbered '109113' for Moen Posi-Temp valves) in the center, secured by a single screw. Crucially, before proceeding, hold the existing valve stem (the brass piece sticking out) firmly in the clockwise 'off' position. This is important because the Moen Posi-Temp valve controls water flow by turning on and off in this manner, and not holding it can result in an unexpected spray of water. While holding it, use a screwdriver to remove the screw from the center of the black cap. Once the screw is removed, carefully pull the black cap off.

Goal: Access the anti-scald mechanism by removing the protective cap

Tools and materials

  • Black Valve Cap — Covering the valve, to be removed for adjustment
  • Screw — Securing the black valve cap
  • Screwdriver — Removing the screw from the black valve cap

What they say

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You're going to take your Allen wrench, you're going to stick it right up in this hole. Go counterclockwise. If you don't hold this because the posi-timp turns on and off this way, you're going to get wet. Hold it clockwise, hold it in the off position, and then start to undo this. You just want to take the black piece with a screw. These two white rings right here are Moin's anti-scaled feature.

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