Clean air CA-604B air humidifier Buzzer removal
bmdbest and one other contributor
Last updated on Jun 24, 2020
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Community-Contributed Guide
An awesome member of our community made this guide. It was not created by iFixit staff.
Introduction
Go to step 1 ↓The Clean Air CA-604B air humidifier has an internal buzzer that beeps every time the user presses a button or when it’s out of water. This is very a very annoying behaviour and I couldn’t find a way to make it shut up.
Unfortunately, the buzzer is soldered on the display’s mainboard so it requires a bit of work to take the whole thing apart and unsolder the noisy component.
Do this at your own risk!
This will most likely void your warranty!
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Take out the water tank
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Remove the 7 screw covers using a flat screwdriver/sharp blade
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Remove the 7 screws using a Phillips screw driver
Ask FixBot
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Remove the 6 screw covers
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Remove the two rubber covers (front feet). They're glued using double adhesive tape.
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Remove the screws revealed by removing the covers above
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Remove the bottom cover
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Remove the three screws
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Detach the white plug (press on it for releasing it)
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Slide the top part about 1cm to detach it from the bottom one
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Release the two screws
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Using a prying tool remove the top plastic cover
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Remove the screws that hold the mainboard
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Locate the black buzzer/speaker
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Flip the mainboard and using a soldering iron remove the component. Add a bit of solder on top of the existing one to make detaching easier
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The source of 4AM noise is now removed!
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After bolting the mainboard, make sure your route the wire as indicated by the red line in the picture (the wire is quite short)
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Reassemble the device in reverse order
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Before trying out the new silent device, make sure you add the water tank (as the panel doesn't seem to work properly without water)
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Enjoy your quiet sleep!
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To reassemble your device, follow these instructions in reverse order.
