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MistAire Humidifier Cap Spring Replacement

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Time Required: 10 minutes
Difficulty: Easy
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MistAire Humidifier Cap Spring Replacement

Introduction

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If your MistAire Humidifier isn’t properly converting water into mist, use this guide to replace the spring inside the cap component.

The spring-loaded (a.k.a. bottle-valve) cap on the humidifier's tank lets water transfer from the filled tank to the heating element in a controlled manner. If the cap has a faulty spring, the water will stay in the tank and the humidifier cannot successfully produce mist. This may occur if dirt accumulates within the base, or if the humidifier is old.

Before using this guide, make sure the tank is empty and does not contain any water. For parts, all you need is a new spring to replace the broken one. These are linked here, on the right hand side. These directions do not require any tools and should take around ten minutes to complete.

What you need

    1. MistAire Humidifier Cap Spring Replacement, Cap Spring: step 1, image 1 of 2 MistAire Humidifier Cap Spring Replacement, Cap Spring: step 1, image 2 of 2
      • Lift the blue tank off of the base of the humidifier.

      • The two parts are not attached or snapped together, so they should separate easily.

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    2. MistAire Humidifier Cap Spring Replacement: step 2, image 1 of 3 MistAire Humidifier Cap Spring Replacement: step 2, image 2 of 3 MistAire Humidifier Cap Spring Replacement: step 2, image 3 of 3
      • Turn the tank upside down.

      • Turn the round cap counterclockwise to completely unscrew it.

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    3. MistAire Humidifier Cap Spring Replacement: step 3, image 1 of 2 MistAire Humidifier Cap Spring Replacement: step 3, image 2 of 2
      • There is a white plastic rod that goes through the center of the cap. It has a flat, circular end and a pointed end. The pointed end has a small, blue, silicone ring around it.

      • Push the flat side of the rod until the pointed end protrudes from the other side of the cap.

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    4. MistAire Humidifier Cap Spring Replacement: step 4, image 1 of 3 MistAire Humidifier Cap Spring Replacement: step 4, image 2 of 3 MistAire Humidifier Cap Spring Replacement: step 4, image 3 of 3
      • While still pushing on the rod, tug the small, blue, silicone ring completely off of the pointed end.

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    5. MistAire Humidifier Cap Spring Replacement: step 5, image 1 of 2 MistAire Humidifier Cap Spring Replacement: step 5, image 2 of 2
      • Once the ring is off, pull the rod and spring out from the center of the cap.

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    6. MistAire Humidifier Cap Spring Replacement: step 6, image 1 of 2 MistAire Humidifier Cap Spring Replacement: step 6, image 2 of 2
      • Slide the broken spring off of the rod.

      • The spring should come off easily.

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    7. MistAire Humidifier Cap Spring Replacement: step 7, image 1 of 2 MistAire Humidifier Cap Spring Replacement: step 7, image 2 of 2
      • Slide a new 10x6x19mm Tapered Compression Spring around the rod.

      • Ensure the narrower end of the cone-shaped spring goes first.

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    8. MistAire Humidifier Cap Spring Replacement: step 8, image 1 of 2 MistAire Humidifier Cap Spring Replacement: step 8, image 2 of 2
      • Pinch the spring gently to secure it around the rod.

      • Push the pointed end of the rod all the way through the center hole of the cap. Hold it there for Step 9.

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    9. MistAire Humidifier Cap Spring Replacement: step 9, image 1 of 3 MistAire Humidifier Cap Spring Replacement: step 9, image 2 of 3 MistAire Humidifier Cap Spring Replacement: step 9, image 3 of 3
      • Push the small blue ring back onto the pointed end of the rod.

      • You should hear a snap when it’s secured.

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    10. MistAire Humidifier Cap Spring Replacement: step 10, image 1 of 3 MistAire Humidifier Cap Spring Replacement: step 10, image 2 of 3 MistAire Humidifier Cap Spring Replacement: step 10, image 3 of 3
      • Now that you have fixed the spring-loaded cap, screw the cap clockwise back onto the bottom of the tank.

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    11. MistAire Humidifier Cap Spring Replacement: step 11, image 1 of 3 MistAire Humidifier Cap Spring Replacement: step 11, image 2 of 3 MistAire Humidifier Cap Spring Replacement: step 11, image 3 of 3
      • Place the tank back onto the humidifier base.

      • You have now successfully replaced the spring in the MistAire Humidifier!

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Finish Line

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Member since: 01/31/24

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UC Davis, Team 1-1, Andersen Winter 2024 Member of UC Davis, Team 1-1, Andersen Winter 2024

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