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Water Filter Troubleshooting & Repair

What Is Wrong With Your Water Filter?

Most residential under-the-counter or icemaker water filters are pretty simple. We discuss, here, a few of the most-common problems you may have with your water filter. For other sorts of problems, contact your filter manufacturer.

The filter needs changing
It leaks
The faucet drips
Learn more about water filters
Order replacement parts

Note: If your repair problem isn't listed, click here to email or chat with a repair expert.

The filter needs changing

Warning! Before you replace your water filter, be sure to turn off the water supply!

The procedure for changing the filter depends on the type of unit:

Replaceable cartridge unit
Disposable filter unit

Replaceable cartridge unit

To change a replaceable-cartridge filter:

  1. Shut off the water supply.
  2. Press the pressure-release button (a little water may leak out).
  3. Using the special tool provided by the filter manufacturer, turn the cartridge casing counterclockwise to remove it.
  4. Remove the old cartridge and insert the new one in the casing.
  5. Using the special tool, thread the casing back onto the top of the filter unit and tighten it (by hand only).

  Disposable filter unit

To change the filter for a disposable unit:

  1. Shut off the water supply.
  2. Unfasten the disposable filter unit from the tubing and discard it.
  3. Attach the new filter to the tubing. Note... If your filter is small--for an ice maker or humidifier--and you don't see an obvious way to release the tubing, it may have a quick-release system. If so, there's a tiny plastic ring around the tubing, 1/8 inch from the filter housing.
  4. To release the tubing, hold the filter and pull the small ring toward the filter body--the tubing should now easily slide out of the filter. Next, push the tubing completely inside the new filter to reattach it.

It leaks

Most residential water filters connect the tubing to the filter with a compression fitting, which must be very tight to provide a complete seal. If you have a leaky compression fitting, one or more components may have been left out, or it may simply need more tightening. Refer to your owner's manual to find out how to fasten the tubing for your water filter.

The faucet drips

The faucet on the sink that is fed by the water filter has seals in it just like any other faucet. Turn off the water supply to the faucet before making repairs.

Still haven't found, what you looking for here? We have more details on water filters for you to detect what's wrong with your home appliance.

Work on these areas of an appliance may require help from an appliance repair person or other qualified technician.

find appliance parts quickly.
This easy-to-use search will help you find appliance parts quickly.
Begin by entering your appliance model number.
find appliance parts quickly.
Where can I find the model number?
The model tag is usually in a visible location, on the front of
the appliance (not on the back). Example: LSQ8243HQ0

Warning! To avoid personal injury or even death, always disconnect your appliance from its power source--that is, unplug it or break the connection at the circuit breaker or fuse box--before you do any troubleshooting or repair work on your appliance. Also, because some components may have sharp edges, use caution while working on your appliance.

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