Oct 25 2013
Last update:

Washing Machine Faucet Leaking

Just Moved Into a New House?

If you haven't used your washer and dryer connections for a while, were out of town for an extended period of time, installed a new washing machine, or just moved into a new home where the washer was unhooked or the water was turned off for a while, then it's highly likely that the bonnet is leaking. In fact, in most cases, the bonnet will leak after a period of non-use.

How to Repair Your Leaking Washing Machine Faucet

Repairing your leaking washing machine faucet is easier than you think. In most cases, all you need to do is tighten the nut around the bonnet with a wrench, as shown in this photo:

Repair Washing Machine FaucetThis is as simple as it gets. If you hire a plumber to do this they will roll in with a wrench and charge you $75 or so for the trip over.

Make sure you tighten the nut to a snug fit, but be careful not to over-tighten it. There is packing inside the bonnet that will compress as you tighten the nut (which you'll notice as it may be slightly more difficult to turn the knob after tightening). This packing, incidentally, is was dries and loosens up during non-use, and is usually the cause of the leak. If you over-tighten, you may end up needing to repack the bonnet. If for some reason tightening it does not work, you may need to replace the shut valve. Do not use teflon tape on the bonnet - that will only cause it to leak more.

Once you've tightened the nut, hook up the water lines from your washing machine and turn on the water to see if the leak is resolved. In most cases, this will do the trick. If not, you may need to replace the valve:

Replacing a Leaking Washing Machine Faucet

If tightening the bonnet nut didn't work, you may need to to add new packing material. First, shut off the water to the house. Next, remove the faucet handle, stem nut, and packing nut. Then, remove the stem, discard the old packing material and clean the stem. You'll probably want to clean the inside of the faucet as well while you're in there. Finally, wrap the new packing material around the stem and re-assemble the faucet.

Use A Flood Sensor

We have all heard the horror stories of a family that leaves on a week vacation and returns home to a flooded home caused by a leak on the washing machine hose. Regular maintenance is a key preventative measure, but we also recommend having a flood sensor in case something still goes wrong. With a monitored flood sensor, a central monitoring station will be notified when water is detected and will notify you and the proper authorities. Our sister site, A Secure Life, has a nice rundown of home security systems that offer flood sensors on their Home Security Systems Comparison page.  

Average: 4.2 (13 votes)

Average: 4.2 (13 votes)
Select your preferred way to display the comments and click "Save settings" to activate your changes.

Repairing your leaky faucet - many small parts

They key to successfully fixing leaky faucets is to keep track of all the parts while you're working. There are a lot of small parts in your faucet, and you must take care to put everything back in its place lest you make the problem worse. Carefully take each item off one at a time, and lay it in a line on your table or floor in the order that you removed it. To put your faucet back together, including the new parts, simply reverse the order.

Leaking Faucet

Thank you! We just moved into a new place and had everything finally settled in, were ready to kick back with some pizza when my wife thought - first, let's test the washer and dryer. The second I turned on the water it started splashing everywhere. I'm not a handyman, but I thought I would be able to tighten it. Turns out the packing inside the bonnet was all corroded. I took it apart and repacked it and now it's leak tight. I fixed it thanks to I Can Fix This!

Laughing out loud

  • Allowed HTML tags: <a> <em> <strong> <cite> <ul> <ol> <li> <dl> <dt> <dd><u>
  • Lines and paragraphs break automatically.
  • Textual smileys will be replaced with graphical ones.

More information about formatting options

Type the characters you see in this picture. (verify using audio)
Type the characters you see in the picture above; if you can't read them, submit the form and a new image will be generated. Not case sensitive.